Tertiary Threat Correction
Three keys A, B, C are such as C corrects the threat of A, C corrects the threat of B and B corrects the threat of A.
Kovacevic, Marjan
Sunningdale Internet Tourney, 2010
1st-2nd Prize
FIDE Album 2010-12
mate in 2 moves
FEN: 4K1R1/2Q5/2N5/2BBNp2/1n3k2/R4P1n/7b/4r2b
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