Unterverwandlung

Weiß hält remis
1.e8S [1.e8D?? h1D Schwarz gewinnt]
1…Txb4 [1...h1D 2.Sc7+ Ka7
3.Sxb5+ Ka6 4.Sc7+ remis]
2.cxb4 h1D 3.Sc7+ Ka7
4.Sxb5+ Ka6 [4...Ka8 5.Sc7+ Ka7
6.Sb5+ remis]
5.Sc7+ Ka7 6.Sb5+ remis
(Babushkin-Postnikow, CorrGame 1969)
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