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Problem 2728

 

 

Bonus Socius, 1300
#2  
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Solution: 1...Kc8/Ne8/Nb7 2.Ra8# 1...Ke8/Nc8 2.Rh8# 1...Ne4/Nf5/Nc4/Nb5 2.Ra8#/Rh8# 2 tries skipped
1.Ke2?? zz 1...Kc8/Ne8/Nb7 2.Ra8# 1...Ke8/Nc8 2.Rh8# 1...Ne4/Nf5/Nc4/Nb5 2.Ra8#/Rh8# but 1...Nf7! 1.Kc2?? zz 1...Kc8/Ne8/Nb7 2.Ra8# 1...Ke8/Nc8 2.Rh8# 1...Ne4/Nf5/Nc4/Nb5 2.Ra8#/Rh8# but 1...Nf7!
1.Rhg7! zz 1...Kc8/Ne8/Nb7 2.Ra8# 1...Ke8/Nf7/Nc8 2.Rg8# 1...Ne4/Nf5/Nc4/Nb5 2.Rg8#/Ra8#

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Yet another chess problem database + wiki