Right Geoff. It need not be a check. Wonder if it is sound with bKa3.
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Does White's final move have to be a check? Even with the bK on a different square (e.g. bK on…
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I would have preferred the solutions to be written in the format below (a ser-hs#3 is a 3-move help-series followed…
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Breton and its variants are now available in Jacobi v0.7.2, which should help those who are composing proof games. You…
On 17th TT by Phénix (C 1.04.2020)
A berolina pawn on b3 would be better to get matching FML effect on B2/W3, but is of course a…
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Good avoidance of Q promotions, and clever choice of which wR.
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Of course this is a Zilahi (of the fully cyclic active 2-captures type): it is always the last of the…
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Clearly at least three White moves are needed for an "active 2-captures Zilahi": two sacrifices + one mate. Also we…
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Thought it will be uploaded. Here it is in text: Manfred Rittirsch feenschach 1997 White : Kf2 Black : Kh1…
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In my neutral cycle only half of the sacrifices are active, but it might still be interesting in this context.…
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