MESON Chess Problem Database
Problem Display
PID: 275367 (1bN2R1n/2p1Prp1/5kq1/K2Q2r1/b6B/1p2P2B/8/8 w - - 0 1)
Andrade, Barry Jack da Costa
British Chess Magazine, 1935
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qxg5#
- 1...Qc2
- 2.Qxg5#
- 1...Qd3
- 2.Qxg5#
- 1...Qe4
- 2.Qxg5#
- 1...Qf5
- 2.Qxf5#
- 1...Qh5
- 2.Qf5#
- 1...Qh7
- 2.Qxg5#
- 1...Qh6
- 2.Qf5#
- 1...Bb5
- 2.Qe6#
- 2.Qd4#
- 1...c5
- 2.Qe6#
- 1...c6
- 2.e8S#
- 1...Qb1
- Tries
- 1.Kxa4?
- threat
- 2.Qe6#
- 2.Qd4#
- 2.e8S#
- 1...Rxf8
- 2.Qe6#
- 1...Qb1
- 2.Qe6#
- 2.Qxg5#
- 1...Qc2
- 2.Qe6#
- 2.Qxg5#
- 1...Qd3
- 2.Qe6#
- 2.Qxg5#
- 1...Qf5
- 2.Qxf5#
- 1...Qh5
- 2.Qe6#
- 2.Qf5#
- 1...Qh7
- 2.Qe6#
- 2.Qxg5#
- 1...Qh6
- 2.Qe6#
- 2.Qf5#
- 1...Ba7
- 2.Qe6#
- 2.e8S#
- 1...c5
- 2.Qe6#
- 2.e8S#
- 1...c6
- 2.Qe6#
- 2.e8S#
- 1...Qe4+!
- threat
- 1.Rxf7+?
- 1...Qxf7
- 2.Qf5#
- 2.Qxg5#
- 1...Sxf7!
- 1...Qxf7
- 1.e8Q?
- threat
- 2.Qde5#
- 2.Qee5#
- 2.Qe6#
- 2.Qe7#
- 2.Qd8#
- 1...Rxf8
- 2.Qde5#
- 2.Qee5#
- 2.Qe6#
- 2.Qe7#
- 1...Qb1
- 2.Qxg5#
- 2.Qe6#
- 1...Qc2
- 2.Qxg5#
- 2.Qe6#
- 1...Qd3
- 2.Qxg5#
- 2.Qe6#
- 1...Qe4
- 2.Qxg5#
- 1...Qf5
- 2.Qxf5#
- 1...Qh5
- 2.Qf5#
- 2.Qe6#
- 1...Qh7
- 2.Qxg5#
- 2.Qe6#
- 1...Qh6
- 2.Qf5#
- 2.Qe6#
- 1...Bd7
- 2.Qde5#
- 2.Qee5#
- 2.Qe7#
- 2.Qd8#
- 1...c5
- 2.Qde6#
- 2.Qdd8#
- 2.Qee6#
- 2.Qe7#
- 2.Qed8#
- 1...c6
- 2.Qe6#
- 2.Qe7#
- 2.Qd8#
- 1...Bxe8!
- threat
- 1.Kxa4?
- Keys
- 1.e4!
- threat
- 2.e5#
- 1...Qxe4
- 2.Qxg5#
- 1...Qf5
- 2.Qxf5#
- 1...Qh5
- 2.Qf5#
- 1...Qh7
- 2.Qxg5#
- 1...Qh6
- 2.Qf5#
- 1...c5
- 2.Qe6#
- 1...c6
- 2.e8S#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- Q(e);N_GUARD::QAB1(E),XR(c)
- Q(e);N_GUARD::QAR1(E),XQ(e)
- Q(e);N_GUARD::QAR1(E)
- P(f);N_PINQ(E)::QAR1(E)
- P(f);S_CUTB(b)::P=S
- Tries
- Try
- K(D);N_SPINQ(E),P-FLIGHT,XB(b)
- Threat
- DUALS(3)
- Vars
- R(g);XR(H)::QAR1(E)
- Q(e);N_GUARD::QAR1(E),XQ(e)
- Refutation
- Q(e);CHECK
- Try
- R(H);CHECK,XR(g)
- Refutation
- S(j);XR(H)
- Try
- P(F);
- Threat
- DUALS(5)
- Vars
- Q(e);N_GUARD::QAB1(E),XR(c)
- Q(e);N_GUARD::QAR1(E),XQ(e)
- Refutation
- B(b);XQ(F)
- Try
- Actual
- P(A);
- Threat
- P(A)
- Vars
- Q(e);N_GUARD,XP(A)::QAB1(E),XR(c)
- Q(e);N_GUARD::QAR1(E),XQ(e)
- Q(e);N_GUARD::QAR1(E)
- Q(e);N_GUARD::QAB1(E),XR(c)
- P(f);N_PINQ(E)::QAR1(E)
- P(f);S_CUTB(b)::P=S
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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