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Introduction to series problems

Introduction to series problems

Only Chess

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Originally posted by SwissGambit
[fen]2R5/4ppQ1/n3ppr1/1k6/p7/P3p1R1/3pnp1K/2bN4 b[/fen]
series helpstalemate in 41

Black moves 41 times in a row; white stalemates in one. Black avoids checking until final move of sequence.

Difficulty: Hard.
I tried cooking this, but it looks to be sound.

It looks like everyone burned out on series problems. I'll post the solutions soon unless someone is still trying to solve.

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Originally posted by SwissGambit
I tried cooking this, but it looks to be sound.

It looks like everyone burned out on series problems. I'll post the solutions soon unless someone is still trying to solve.
Haven't had much time last week, but this one seems too hard for me.

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Originally posted by SwissGambit
[fen]2R5/4ppQN/n3ppr1/1k6/p7/P3p1R1/3pnp1K/2bN4 w[/fen]
series helpstalemate in 41

Black moves 41 times in a row; white stalemates in one. Black avoids checking until final move of sequence.

Difficulty: Hard.
Solution: [wNh7 is a dummy piece to kill time]


Six Q promotions.

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Originally posted by SwissGambit
[fen]8/8/N7/4pkp1/3p1pp1/3p4/5pp1/2K5 b[/fen]
Series helpmate in 17

[Black makes 17 moves in a row, avoiding checks until the last move, then white mates in one].

Difficulty: easy-medium

ser. h#17

This one should be solvable...

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Originally posted by SwissGambit
[fen]8/8/N7/4pkp1/3p1pp1/3p4/5pp1/2K5 b[/fen]
ser. h#17

This one should be solvable...
SOLV'D [PigsOnThe7th]

Solution:


[wNh8 is a dummy piece to kill time]

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