Tactics you can use from wtharvey.com



Here are some chess puzzles from the games of Bobby Cheng.
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)
Black mates in 2.
Nikoloz Kumsiashvili vs Bobby Cheng, Kemer, 2007
r1r3k1/6pb/q1p2p1p/3p2PP/1BnP1P2/2Q1P3/1PN5/2KR3R b - - 0 1
[ ...Qa1+ ]

b)
White mates in 4.
Bobby Cheng vs Max Illingworth, Canterbury, 2010
6rk/pbR3rp/4BQ2/8/1P1p2P1/6q1/4R1P1/6K1 w - - 1 0
[ Rxg7 ]

c)
John Dowling vs Bobby Cheng, Balarat, 2010
r1b3k1/5ppp/pnR3r1/3pq3/1P1Np3/P3P2P/4QPP1/R4NK1 b - - 0 1
[ ...Rxc6 ]

d)
Michael Steadman vs Bobby Cheng, Canterbury, 2010
2b3k1/6pp/p7/2PP4/5qn1/2Q1p1N1/P4rPP/4RNK1 b - - 0 1
[ ...Rxg2+ Kxg2 Qf2+ if Kh1 Qf3+ Kg1 Nf2 or if Kh3 Nf6+ ]

e)
White mates in 3.
Bobby Cheng vs Arianne Caoili, Canberra, 2011
r1b5/pppp3q/5Q2/1k1p4/8/P7/1PPB1P2/R4K2 w - - 1 0
[ a4+ Kc5 b4+ ]

Bobby Cheng puzzles, pt. ii.
The color disk on the diagram indicates who moves first.
a)
White mates in 2.
Bobby Cheng vs Hamish Selnes, Melbourne, 2011
2b1nr1k/p2Rq1pp/1p3p2/2b1N3/2B1pPQ1/1P2P3/PB4PP/6K1 w - - 1 0
[ Ng6+ ]

b)
Michael Steadman vs Bobby Cheng, Rotorua, 2011
q5k1/p4p2/6p1/3Q3p/2p1NP2/2P3PP/4R2K/r7 b - - 0 1
[ ...Rh1+ (if ...Qxd4 Nf6+) ]

c)
Black mates in 5.
Eddy Levi vs Bobby Cheng, Box Hill, 2011
4k3/1p5p/p1p2pp1/2Np4/1Q1P4/1PP4P/P4PP1/1q3nK1 b - - 0 1
[ ...Ng3+ Kh2 Ne2 h4 Qg1+ ]

d)
Black mates in 3.
Derek Yu vs Bobby Cheng, Canberra, 2012
2r3k1/p2Q2pp/1p2p3/3pP3/4n2q/P7/6PP/5R1K b - - 0 1
[ ...Ng3+ Kg1 Qd4+ ]

e)
Bobby Cheng vs Ari Dale, Melbourne, 2015
5rk1/7p/3PNqp1/pp2Q3/1n1P4/r5PP/5PB1/5NK1 w - - 1 0
[ Qxf6 Rxf6 d7 ]

Bobby Cheng puzzles, pt. iii.
The color disk on the diagram indicates who moves first.
a)
Bobby Cheng vs Gary Lane, Canberra, 2016
r2qkb1r/p2n1ppp/2Q1pnb1/4N1N1/8/6P1/PP1P1P1P/R1B1R1K1 w kq - 1 0
[ Nxg6 hxg6 Nxf7 if Kxf7 Qxe6# ]

b)
Black mates in 3.
Kanan Izzat vs Bobby Cheng, Melbourne, 2017
2r5/pp1k2p1/5q1p/1b1p3P/3P4/B3p1P1/1Q6/4K2R b - - 0 1
[ ...Rc1+ ]

c)
Timur Gareev vs Bobby Cheng, Gold Coast, 2018
7r/4k3/3p4/1N1Ppp2/p7/P2nRQPq/1P3P2/6K1 b - - 0 1
[ ...Nf4 if gxf4 Rg8+ or if Nxd6 Qh2+ ]

d)
Christopher Wallis vs Bobby Cheng, Adelaide, 2018
1q3rk1/3nbpp1/Q3p2p/3nP3/N7/P4N2/1B3PPP/R5K1 b - - 0 1
[ ...Nc5 if Nxc5 Qxb2 ]

e)
Christopher Wallis vs Bobby Cheng, Melbourne, 2018
rr4k1/3R1qb1/7p/1pp2p1P/2n3pB/P3P3/1PQ1BPP1/1K1R4 b - - 0 1
[ ...Nxa3+ if bxa3 Rxa3 or if Kc1 Nxc2 ]


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