Hilmar Ebert

Probleme. „SEM 84“

 Saarländische Schachmeisterschaft 1984,

Turnier-Bulletin,

S. 16,41,51,83,86,95,101; Lösungen S. 103, I 1984

Hilmar Ebert

Schweizerische Schachzeitung 1978

White wins(!)

1. Bh6! a2 (!) 2. Ba1!! a3 3. Kf6 Kh8 4. Kf7 mate (If 1... Kh8?! then 2. Kf7! followed by 3. Bg7#)

 Theoretical exception: Here, two white bishops on same-colored squares succeed in checkmating alone – even against several black pawns! This is possible due to double intersection clearance of square g7.

 An unexpected Indian theme: A momentary self-block is used deliberately to avoid stalemate and enable a powerful discovered mate.