Tactics you can use from wtharvey.com
Here are some chess puzzles from the games of Silvia Collas (née Aleksieva).
The color disk on the diagram indicates who moves first.
Solutions are between the brackets under each puzzle.
Drag your cursor from one bracket to the other.
a) 
Silvia Collas vs Claire Bodenez, Val d'Isere, 2004
2qb2k1/r4ppp/1n2p3/4N3/pp1PP3/4B3/1PQ2PPP/R5K1 w - - 1 0
[ Qxc8 Nxc8 Nc6 Rd7 Rxa4 ]
b) 
Silvia Collas vs Henry Schoucair, Rochefort, 2005
1r3brk/p1p2ppp/7P/3R1NQ1/q1p5/2P2P2/1PP3P1/1K1R4 w - - 1 0
[ hxg7+ if Bxg7 Rd8 ]
c) 
Silvia Collas vs Sophie Lam, France, 2007
2r2r1k/1p2pp1p/3p1np1/p1qPnP2/2P4Q/1P2N2R/P3B1PP/5R1K w - - 1 0
[ fxg6 Nxg6 Qh6 Rg8 Rxf6 ]
d) 
White mates in 3.
Silvia Collas vs Patrick Lebel, Cannes, 2007
2rn1rk1/pbq2ppp/1p1b4/3PB2N/2P5/PP1Q4/5PPP/R3R1K1 w - - 1 0
[ Nf6+ gxf6 Qg3+ ]
e) 
Silvia Collas vs Sabine Fruteau, Aix les Bains, 2007
5r2/p2R1pk1/2p3p1/q3p3/n3B3/5Q1P/PrP2P2/2K4R w - - 1 0
[ Bxg6 if Rxa2 Rxf7+ mates ]
1d) 
mate in 3
Silvia Collas vs Patrick Lebel
Silvia Collas Puzzles, Part II.
The color disk on the diagram indicates who moves first.
a) 
White mates in 3.
Silvia Collas vs Adriana Nikolova, Sunny Beach, 2007
5qk1/r1p2p2/1pRr1P1p/p2pR1p1/8/1P1BP2Q/P2P2PP/6K1 w - - 1 0
[ Qf5 if Qg7 Re8+ ]
b) 
Silvia Collas vs Patrice Babault, Mulhouse, 2011
r5k1/4q1pp/1pb1p3/p1b1Qr2/P3p1N1/1P5P/1B1R1PP1/3R2K1 w - - 1 0
[ Nh6+ if gxh6 Rd8+ mates ]
c) 
White mates in 2.
Silvia Collas vs Maria Toro Pradenas, Istanbul, 2012
4rrk1/1pb1q2p/p1p3B1/2Pp4/1P1B3P/P3pN1n/4K1Q1/6R1 w - - 1 0
[ Bxh7+ ]
d) 
White mates in 4.
Silvia Collas vs Lara-Maria Armas, Villandry, 2013
3r1nkb/p3q3/1p1nP1BP/2p1p3/2P1P1Q1/1P6/PB6/3R2K1 w - - 1 0
[ Bf7+ Kh7 Bg8+ ]
e) 
White mates in 4.
Silvia Collas vs Dimitrij Bunzmann, Saint-Quentin, 2014
4R3/p1p2k2/Q2q3p/3P1rrP/3B4/P5p1/5P2/4R1K1 w - - 1 0
[ Rf8+ Kxf8 Qc8+ ]
2b) 
Silvia Collas vs Patrice Babault
Silvia Collas Puzzles, Part III.
The color disk on the diagram indicates who moves first.
a) 
White mates in 2.
Silvia Collas vs Fiona Steil-Antoni, Drancy, 2016
3rr2k/2q3pp/3b1p2/p4P2/1p2nPRQ/5R1P/BPP1p1P1/4B1K1 w - - 1 0
[ Qxh7+ ]
b) 
Black mates in 3.
Jana Krivec vs Silvia Collas, Varna, 2002
b4k2/7p/4Qpp1/8/p2Pn3/P2q1N2/6PP/2R3K1 b - - 0 1
[ ...Qe3+ Kh1 Qxc1+ ]
c) 
Marion Joanovits vs Silvia Collas, France, 2004
r4k1r/pp3ppp/2b1p3/3qP3/8/2PB1P2/P5PP/R2Q1RK1 b - - 0 1
[ ...Rd8 if Bc2 Qc5+ ]
d) 
Gerard Simon vs Silvia Collas, France, 2004
rn3rk1/pb1pq2p/1p2p3/5p2/3P1np1/2P1QN2/PPBN1PPP/R4RK1 b - - 0 1
[ ...Nd5 if Qg5+ Qxg5 Nxg5 h6 ]
e) 
Josep Segura Riba vs Silvia Collas, Salou, 2005
r3k2r/1bqp1ppp/p1n1p3/1pb5/4P1n1/P1NB1N1P/1PP1QPP1/R1B2RK1 b kq - 0 1
[ ...Nd4 ]
f) 
Francesc Farran Martos vs Silvia Collas, Salou, 2005
r1b2rk1/1p1nbppp/p3p3/2N1P3/1q1B4/5B2/P1P3PP/1R1Q1RK1 b - - 0 1
[ ...Qxd4+ Qxd4 Bxc5 ]
g) 
Black mates in 5.
Ivan Kolev vs Silvia Collas, Sunny Beach, 2005
r5k1/pb4pp/3b4/2ppq2P/Np1nP2B/1P5Q/P1P2rB1/2K1R1R1 b - - 0 1
[ ...Nxb3+ Qxb3 Qa1+ Qb1 Bf4+ ]
3g) 
mate in 5
Ivan Kolev vs Silvia Collas
French GMs
Back to the Index