Here are some chess puzzles from the games of Roberto Grau.
White to move and win except where noted.

Solutions are between the brackets under each puzzle.
Drag your cursor from one bracket to the other.

a)
Grau vs A Barboza de Oliveira, Carrasco, 1921
2rq1rk1/pb3ppp/1p1b4/3p1N2/1P6/P1n1P3/1B2BPPP/R2Q1RK1 w - - 0 1
[ Bxc3 if Rxc3 Qd4 ]

b)
Black to move and win. Benito Villegas vs Grau, Mar del Plata, 1928
6k1/5pp1/bq5p/p2pP3/Pp3P2/1P2N3/2Q2KPP/8 b - - 0 1
[ ...d4 ]

c)
Grau vs Carlos Maderna, Rosario, 1929
2b3k1/Rrqnb1pp/1Np1pp2/2Pp4/3P1P2/3B1NP1/Q4P1P/6K1 w - - 0 1
[ Nxc8 ]



d) White Mates in 3. Grau vs Edgard Colle, San Remo, 1930
1k5r/pP3ppp/3p2b1/1BN1n3/1Q2P3/P1B5/KP3P1P/7q w - - 0 1

e)
Grau vs Jacobo Bolbochan, Mar del Plata, 1934
r1b1r1k1/3q1npp/p3p3/2Bn4/1PBQ4/P4N2/5PP1/2R1R1K1 w - - 0 1
[ Bxd5 if exd5 Qxd5 Rb8 Rxe8+ Qxe8 Re1 Qd7 Re7 ]


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