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Oct 12, 2017 at 8:26 history edited Evargalo CC BY-SA 3.0
edited body
S Oct 12, 2017 at 8:26 history suggested Laska CC BY-SA 3.0
remove the "type" terminology
Oct 12, 2017 at 7:01 review Suggested edits
S Oct 12, 2017 at 8:26
Oct 11, 2017 at 9:32 history edited Evargalo CC BY-SA 3.0
added 80 characters in body
Sep 27, 2017 at 15:34 history edited Evargalo CC BY-SA 3.0
added 7 characters in body
Sep 27, 2017 at 15:15 vote accept supercat
Dec 14, 2023 at 15:48
Sep 27, 2017 at 12:35 history edited Evargalo CC BY-SA 3.0
added 2 characters in body
Sep 27, 2017 at 8:02 history edited Evargalo CC BY-SA 3.0
added 510 characters in body
Sep 25, 2017 at 17:13 comment added D M @supercat I missed that it says "either". OK.
Sep 25, 2017 at 17:12 comment added supercat @OlivierPucher: It might be helpful to add annotations showing how things would play out until the repeat. I got tripped up because your previous position had black to play, so I was looking for Black to do likewise on the last one.
Sep 25, 2017 at 17:10 comment added supercat @DM: There are three questions in one, which might or might not all have the same best answer. A situation where the player on move would have no legal move that didn't force stalemate would be a valid answer for the first. A situation where two players repeat the same sequence of four positions endlessly would qualify for any of them, since in the absence of a rule about draws by repetition, that sequence could be played arbitrarily many times, and in the presence of such a rule even the starting position would eventually lead to a draw by repetition if the game didn't by other means first.
Sep 25, 2017 at 16:30 comment added D M I think some of these violate the terms of the question: "It would be possible to play an arbitrary number of legal moves" and "No legal sequence of legal moves would produce checkmate or stalemate".
Sep 25, 2017 at 13:58 history edited Evargalo CC BY-SA 3.0
added 1 character in body
Sep 25, 2017 at 13:53 comment added supercat What's happened to the 26 position? It seems to have become a non-solution since White is checkmated.
Sep 25, 2017 at 13:50 history edited Evargalo CC BY-SA 3.0
added 16 characters in body
Sep 25, 2017 at 13:42 comment added supercat The trick for 24 is fine.
Sep 25, 2017 at 13:39 history edited Evargalo CC BY-SA 3.0
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Sep 25, 2017 at 10:29 comment added RemcoGerlich Wow, it seems the 26 is even legal, black a-pawn captures twice to promote on a1 or c1, black d-pawn captures once, accounts for all white's missing pieces. The g-pawn may have promoted on g1 and got there because white's g-pawn captured twice on its way to g8, which happens to be white. Nice :-)
Sep 25, 2017 at 10:21 comment added RemcoGerlich I like the trick for this 24!
Sep 25, 2017 at 10:05 history edited Evargalo CC BY-SA 3.0
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Sep 25, 2017 at 9:56 comment added Evargalo Oh, you're right of course.
Sep 25, 2017 at 9:55 comment added AakashM Your '24' needs promoted units too (Black has two black-square bishops)
Sep 25, 2017 at 9:52 history edited Evargalo CC BY-SA 3.0
added 228 characters in body
Sep 25, 2017 at 8:36 history edited Evargalo CC BY-SA 3.0
added 211 characters in body
Sep 25, 2017 at 8:18 history answered Evargalo CC BY-SA 3.0