From af33329ceec340a1314affc4dbd5198f248453af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sotetsu=20KOYAMADA=EF=BC=88=E5=B0=8F=E5=B1=B1=E7=94=B0?=
 =?UTF-8?q?=E5=89=B5=E5=93=B2=EF=BC=89?= <koyamada-s@sys.i.kyoto-u.ac.jp>
Date: Fri, 26 May 2023 13:09:23 +0900
Subject: [PATCH] Update some environments to `v0` (#909)

---
 README.md            | 20 +++++++++-----------
 pgx/animal_shogi.py  |  2 +-
 pgx/chess.py         |  2 +-
 pgx/connect_four.py  |  2 +-
 pgx/gardner_chess.py |  2 +-
 pgx/go.py            |  2 +-
 pgx/hex.py           |  2 +-
 pgx/othello.py       |  2 +-
 pgx/shogi.py         |  2 +-
 pgx/tic_tac_toe.py   |  2 +-
 10 files changed, 18 insertions(+), 20 deletions(-)

diff --git a/README.md b/README.md
index 4fbb43410..890e8cfa6 100644
--- a/README.md
+++ b/README.md
@@ -54,8 +54,6 @@ while not (state.terminated | state.truncated).all():
     state = step(state, action)  # state.reward (2,)
 ```
 
-> ⚠️ Pgx is currently in the beta version. Therefore, API is subject to change without notice. We aim to release v1.0.0 in May 2023. Opinions and comments are more than welcome!
-
 <!---
 ### Limitations (for the simplicity)
 * Does **NOT** support agent death and creation, which dynmically changes the array size. It does not well suit to GPU-accelerated computation.
@@ -97,13 +95,13 @@ You can check the current version of each environment by
 | Game/EnvId | Visualization | Version | Five-word description |
 |:---:|:---:|:---:|:---:|
 |<a href="https://en.wikipedia.org/wiki/2048_(video_game)">2048</a> <br> `"2048"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/2048_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/2048_light.gif" width="60px">| `beta` | *Merge tiles to create 2048.* |
-|<a href="https://en.wikipedia.org/wiki/D%C5%8Dbutsu_sh%C5%8Dgi">Animal Shogi</a><br>`"animal_shogi"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/animal_shogi_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/animal_shogi_light.gif" width="60px">|  `beta` | *Animal-themed child-friendly shogi.* |
+|<a href="https://en.wikipedia.org/wiki/D%C5%8Dbutsu_sh%C5%8Dgi">Animal Shogi</a><br>`"animal_shogi"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/animal_shogi_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/animal_shogi_light.gif" width="60px">|  `v0` | *Animal-themed child-friendly shogi.* |
 |<a href="https://en.wikipedia.org/wiki/Backgammon">Backgammon</a><br>`"backgammon"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/backgammon_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/backgammon_light.gif" width="60px">| `beta` | *Luck aids bearing off checkers.* |
-|<a href="https://en.wikipedia.org/wiki/Chess">Chess</a><br>`"chess"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/chess_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/chess_light.gif" width="60px">| `beta` | *Checkmate opponent's king to win.* |
-|<a href="https://en.wikipedia.org/wiki/Connect_Four">Connect Four</a><br>`"connect_four"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/connect_four_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/connect_four_light.gif" width="60px">| `beta` | *Connect discs, win with four.* |
-|<a href="https://en.wikipedia.org/wiki/Minichess">Gardner Chess</a><br>`"gardner_chess"`|<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/gardner_chess_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/gardner_chess_light.gif" width="60px">| `beta` | *5x5 chess variant, excluding castling.* |
-|<a href="https://en.wikipedia.org/wiki/Go_(game)">Go</a><br>`"go_9x9"` `"go_19x19"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/go-19x19_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/go-19x19_light.gif" width="60px">| `beta` | *Strategically place stones, claim territory.* |
-|<a href="https://en.wikipedia.org/wiki/Hex_(board_game)">Hex</a><br>`"hex"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/hex_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/hex_light.gif" width="60px">| `beta` | *Connect opposite sides, block opponent.* |
+|<a href="https://en.wikipedia.org/wiki/Chess">Chess</a><br>`"chess"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/chess_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/chess_light.gif" width="60px">| `v0` | *Checkmate opponent's king to win.* |
+|<a href="https://en.wikipedia.org/wiki/Connect_Four">Connect Four</a><br>`"connect_four"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/connect_four_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/connect_four_light.gif" width="60px">| `v0` | *Connect discs, win with four.* |
+|<a href="https://en.wikipedia.org/wiki/Minichess">Gardner Chess</a><br>`"gardner_chess"`|<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/gardner_chess_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/gardner_chess_light.gif" width="60px">| `v0` | *5x5 chess variant, excluding castling.* |
+|<a href="https://en.wikipedia.org/wiki/Go_(game)">Go</a><br>`"go_9x9"` `"go_19x19"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/go-19x19_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/go-19x19_light.gif" width="60px">| `v0` | *Strategically place stones, claim territory.* |
+|<a href="https://en.wikipedia.org/wiki/Hex_(board_game)">Hex</a><br>`"hex"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/hex_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/hex_light.gif" width="60px">| `v0` | *Connect opposite sides, block opponent.* |
 |<a href="https://en.wikipedia.org/wiki/Kuhn_poker">Kuhn Poker</a><br>`"kuhn_poker"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/kuhn_poker_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/kuhn_poker_light.gif" width="60px">| `beta` | *Three-card betting and bluffing game.* |
 |<a href="https://arxiv.org/abs/1207.1411">Leduc hold'em</a><br>`"leduc_holdem"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/leduc_holdem_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/leduc_holdem_light.gif" width="60px">| `beta` | *Two-suit, limited deck poker.* |
 |<a href="https://github.com/kenjyoung/MinAtar">MinAtar/Asterix</a><br>`"minatar-asterix"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/minatar-asterix.gif" width="50px">| `beta` | *Avoid enemies, collect treasure, survive.* |
@@ -111,10 +109,10 @@ You can check the current version of each environment by
 |<a href="https://github.com/kenjyoung/MinAtar">MinAtar/Freeway</a><br>`"minatar-freeway"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/minatar-freeway.gif" width="50px">| `beta` | *Dodging cars, climbing up freeway.* |
 |<a href="https://github.com/kenjyoung/MinAtar">MinAtar/Seaquest</a><br>`"minatar-seaquest"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/minatar-seaquest.gif" width="50px">| `beta` | *Underwater submarine rescue and combat.* |
 |<a href="https://github.com/kenjyoung/MinAtar">MinAtar/SpaceInvaders</a><br>`"minatar-space_invaders"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/minatar-space_invaders.gif" width="50px">| `beta` | *Alien shooter game, dodge bullets.* |
-|<a href="https://en.wikipedia.org/wiki/Reversi">Othello</a><br>`"othello"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/othello_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/othello_light.gif" width="60px">| `beta` | *Flip and conquer opponent's pieces.* |
-|<a href="https://en.wikipedia.org/wiki/Shogi">Shogi</a><br>`"shogi"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/shogi_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/shogi_light.gif" width="60px"> | `beta` | *Japanese chess with captured pieces.* |
+|<a href="https://en.wikipedia.org/wiki/Reversi">Othello</a><br>`"othello"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/othello_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/othello_light.gif" width="60px">| `v0` | *Flip and conquer opponent's pieces.* |
+|<a href="https://en.wikipedia.org/wiki/Shogi">Shogi</a><br>`"shogi"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/shogi_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/shogi_light.gif" width="60px"> | `v0` | *Japanese chess with captured pieces.* |
 |<a href="https://sugorokuya.jp/p/suzume-jong">Sparrow Mahjong</a><br>`"sparrow_mahjong"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/sparrow_mahjong_dark.svg" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/sparrow_mahjong_light.svg" width="60px">|  `beta` | *A simplified, children-friendly Mahjong.* |
-|<a href="https://en.wikipedia.org/wiki/Tic-tac-toe">Tic-tac-toe</a><br>`"tic_tac_toe"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/tic_tac_toe_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/tic_tac_toe_light.gif" width="60px">| `beta` | *Three in a row wins.* |
+|<a href="https://en.wikipedia.org/wiki/Tic-tac-toe">Tic-tac-toe</a><br>`"tic_tac_toe"` |<img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/tic_tac_toe_dark.gif" width="60px"><img src="https://raw.githubusercontent.com/sotetsuk/pgx/main/docs/assets/tic_tac_toe_light.gif" width="60px">| `v0` | *Three in a row wins.* |
 
 - <a href="https://en.wikipedia.org/wiki/Contract_bridge">Bridge Bidding</a> and <a href="https://en.wikipedia.org/wiki/Japanese_mahjong">Mahjong</a> environments are under development 🚧
 - Five-word descriptions were generated by [ChatGPT](https://chat.openai.com/) 🤖
diff --git a/pgx/animal_shogi.py b/pgx/animal_shogi.py
index 643030f11..31c96aa2b 100644
--- a/pgx/animal_shogi.py
+++ b/pgx/animal_shogi.py
@@ -152,7 +152,7 @@ def id(self) -> v1.EnvId:
 
     @property
     def version(self) -> str:
-        return "beta"
+        return "v0"
 
     @property
     def num_players(self) -> int:
diff --git a/pgx/chess.py b/pgx/chess.py
index 957a9ea8e..47782b394 100644
--- a/pgx/chess.py
+++ b/pgx/chess.py
@@ -224,7 +224,7 @@ def id(self) -> v1.EnvId:
 
     @property
     def version(self) -> str:
-        return "beta"
+        return "v0"
 
     @property
     def num_players(self) -> int:
diff --git a/pgx/connect_four.py b/pgx/connect_four.py
index de6e89eec..80612a769 100644
--- a/pgx/connect_four.py
+++ b/pgx/connect_four.py
@@ -70,7 +70,7 @@ def id(self) -> v1.EnvId:
 
     @property
     def version(self) -> str:
-        return "beta"
+        return "v0"
 
     @property
     def num_players(self) -> int:
diff --git a/pgx/gardner_chess.py b/pgx/gardner_chess.py
index 6076d7761..1aa68226f 100644
--- a/pgx/gardner_chess.py
+++ b/pgx/gardner_chess.py
@@ -195,7 +195,7 @@ def id(self) -> v1.EnvId:
 
     @property
     def version(self) -> str:
-        return "beta"
+        return "v0"
 
     @property
     def num_players(self) -> int:
diff --git a/pgx/go.py b/pgx/go.py
index ea44fc5f7..afde373df 100644
--- a/pgx/go.py
+++ b/pgx/go.py
@@ -104,7 +104,7 @@ def id(self) -> v1.EnvId:
 
     @property
     def version(self) -> str:
-        return "beta"
+        return "v0"
 
     @property
     def num_players(self) -> int:
diff --git a/pgx/hex.py b/pgx/hex.py
index c4474cb66..725702f6c 100644
--- a/pgx/hex.py
+++ b/pgx/hex.py
@@ -83,7 +83,7 @@ def id(self) -> v1.EnvId:
 
     @property
     def version(self) -> str:
-        return "beta"
+        return "v0"
 
     @property
     def num_players(self) -> int:
diff --git a/pgx/othello.py b/pgx/othello.py
index 79d7ea42b..31e509282 100644
--- a/pgx/othello.py
+++ b/pgx/othello.py
@@ -72,7 +72,7 @@ def id(self) -> v1.EnvId:
 
     @property
     def version(self) -> str:
-        return "beta"
+        return "v0"
 
     @property
     def num_players(self) -> int:
diff --git a/pgx/shogi.py b/pgx/shogi.py
index cd508f7d5..fd741202c 100644
--- a/pgx/shogi.py
+++ b/pgx/shogi.py
@@ -148,7 +148,7 @@ def id(self) -> v1.EnvId:
 
     @property
     def version(self) -> str:
-        return "beta"
+        return "v0"
 
     @property
     def num_players(self) -> int:
diff --git a/pgx/tic_tac_toe.py b/pgx/tic_tac_toe.py
index 41a95f804..93db37958 100644
--- a/pgx/tic_tac_toe.py
+++ b/pgx/tic_tac_toe.py
@@ -65,7 +65,7 @@ def id(self) -> v1.EnvId:
 
     @property
     def version(self) -> str:
-        return "beta"
+        return "v0"
 
     @property
     def num_players(self) -> int: