Retrograde Analysis
Chess Problems

by Leo Mano


AR07 - Leo Mano
(14x14) b6N - 3p3B - 1q1p2p1 - ppk5 - 5b2 - 1PP1p1pP - P1nBP1RP - 2rRrNKQ

White retracts, Black then retracts and helps White mates in 1 (4 solutions).

Solution:

White and Black retracts / Helpmates in 1
a) 1 g8-h7, c7xd6 / 1 c6, e4++
b) 1 f7-h8, c7xd6 / 1 c6, g3++
c) 1 f2-g2, c7xd6 / 1 d5, d5++
d) 1 b2-b3, c7xd6 / 1 c4, b3++

If White retracts g8xh7? or f7xh8? then Black can't retracts c7xd6 or c7xd6 becose it's illegal and the problem has no solution. There's no other legal White's retract move.

Back to home


(p)2000-2001 by Leo Mano. Rio de Janeiro - RJ, Brazil.