There is an issue: White Bishop makes a pure tempo move in one solution and moves out of future attack…
!
It seems too easy to mate black king in so many moves, and double switchback seems impossible. At the same…
Misprint - two pieces are missed
The "convention" is somewhat natural: it should be "easy" to reach any position if there is no limitation to the…
According to standard chess approach, the same placement of pieces with WTM and BTM are different chess positions. So, strictly…
This is not a cook, as a loss of tempo is an idea of the problem.
Is it really "big unmasking" in 1237.1? Or is it simply a diagram error?
With WSa3 there are no 9-move solutions, but still cooked with 1.Rd4 NTe2 2.Rxe4! Kd6 3.NTxe2.
WinChloe shows what is tends to be called "Vladimirov-style cook" in Russia (meaning Jakov Vladimirov, who often reminded about this…