Timeline for Chess Construction Challenge #1-Read First Please!
Current License: CC BY-SA 4.0
14 events
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| Jul 26, 2019 at 21:51 | history | edited | sunfishho | CC BY-SA 4.0 |
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| Jul 14, 2019 at 10:56 | comment | added | trolley813 |
@RewanDemontay White has a king, a pawn and a rook, Black has a king and a queen (FEN string: 7K/5P2/4q1k1/R7/8/8/8/8). What's the 6th piece?
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| Jul 12, 2019 at 7:41 | comment | added | trolley813 | @RewanDemontay For a knight winning position, one can add a white rook on a5 to im_so_meta_even_this_acronym 's original position (so 5 pieces in total). Then 1.f8=N will be the only winning move (for the very same reason, since white rook has no checks), while other moves do not even give a draw! For the rook winning position, 1. f8=R is definitely the best move (it gives mate in 2), but it's unfortunately not the only one which wins (since 1.Ke7 or 1.Ke6 followed by 2.f8=Q also wins). | |
| Jul 12, 2019 at 5:59 | history | edited | sunfishho | CC BY-SA 4.0 |
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| Jul 12, 2019 at 5:45 | comment | added | sunfishho | @RosieF whoops thanks for catching that error! | |
| Jul 12, 2019 at 5:34 | comment | added | Rosie F | "2 knights cannot mate a king by themselves if the opposing side has waiting moves." Isn't it the reverse? I understood that 2 knights cannot force mate by themselves (unless they can mate in 1), but in KNN v KP the knights win (unless the P can safely queen & start checking) exactly because the defender has waiting-moves with the P which prevent a stalemate defence. | |
| Jul 12, 2019 at 2:57 | comment | added | sunfishho | By the way, wanted to say that was a great puzzle, especially the bishop mate :) @RewanDemontay | |
| Jul 12, 2019 at 2:20 | history | edited | sunfishho | CC BY-SA 4.0 |
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| Jul 12, 2019 at 1:12 | comment | added | sunfishho | Is it possible with only 4 pieces? | |
| Jul 12, 2019 at 1:12 | history | edited | sunfishho | CC BY-SA 4.0 |
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| Jul 12, 2019 at 1:10 | vote | accept | Rewan Demontay | ||
| S Jul 12, 2019 at 1:01 | history | edited | Rubio♦ | CC BY-SA 4.0 |
Minor formatting fix
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| Jul 12, 2019 at 1:00 | review | Suggested edits | |||
| S Jul 12, 2019 at 1:01 | |||||
| Jul 12, 2019 at 0:51 | history | answered | sunfishho | CC BY-SA 4.0 |