MESON Chess Problem Database
Problem Display
PID: 51104 (8/5Q2/2p5/5p2/2P1kpR1/2B1b3/4R1P1/K7 w - - 0 1)
Watson, RF
Burnley Express, 1881
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...fxg4
- 2.Qg6#
- 2.Qh7#
- 1...c5
- 2.Qd5#
- 1...fxg4
- Tries
- 1.Kb1?
- 1...fxg4
- 2.Qg6#
- 2.Qh7#
- 1...c5
- 2.Qd5#
- 1...Kd3!
- 1...fxg4
- 1.Ka2?
- 1...fxg4
- 2.Qg6#
- 2.Qh7#
- 1...c5
- 2.Qd5#
- 1...Kd3!
- 1...fxg4
- 1.Kb2?
- 1...fxg4
- 2.Qg6#
- 2.Qh7#
- 1...c5
- 2.Qd5#
- 1...Kd3!
- 1...fxg4
- 1.Bb2?
- 1...fxg4
- 2.Qg6#
- 2.Qh7#
- 1...c5
- 2.Qd5#
- 1...Kd3!
- 1...fxg4
- 1.Bf6?
- 1...fxg4
- 2.Qg6#
- 2.Qh7#
- 1...c5
- 2.Qd5#
- 1...Kd3!
- 1...fxg4
- 1.Bg7?
- 1...fxg4
- 2.Qg6#
- 1...c5
- 2.Qd5#
- 1...Kd3!
- 1...fxg4
- 1.Bh8?
- 1...fxg4
- 2.Qg6#
- 2.Qh7#
- 1...c5
- 2.Qd5#
- 1...Kd3!
- 1...fxg4
- 1.Re1?
- 1...fxg4
- 2.Qg6#
- 2.Qh7#
- 1...c5
- 2.Qd5#
- 1...Kd3!
- 1...fxg4
- 1.Rh4?
- 1...c5
- 2.Qd5#
- 1...Kd3!
- 1...c5
- 1.Qg8?
- 1...fxg4
- 2.Qh7#
- 2.Qg6#
- 1...c5
- 2.Qd5#
- 1...Kd3!
- 1...fxg4
- 1.Kb1?
- Keys
- 1.Qd7!
- threat
- 2.Qd4#
- 1...fxg4
- 2.Qh7#
- 1...c5
- 2.Qd5#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- P(e);N_GUARD::QAB1(G)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- P(e);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT
- Try
- K(A);P-FLIGHT
- Vars
- P(e);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT
- Try
- K(A);S_FLIGHT
- Vars
- P(e);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT
- Try
- B(D);
- Vars
- P(e);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT
- Try
- B(D);
- Vars
- P(e);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT
- Try
- B(D);
- Vars
- P(d);N_SPINP(c),OGATEB,XR(F)::QAB(G)
- P(e);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT
- Try
- B(D);
- Vars
- P(e);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT
- Try
- R(B);
- Vars
- P(e);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT
- Try
- R(F);
- Vars
- P(e);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT
- Try
- Q(G);
- Vars
- P(e);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT
- Try
- Actual
- Q(G);
- Threat
- QAR1(G)
- Vars
- P(d);N_SPINP(c),OGATEB,XR(F)::QAB(G)
- P(e);N_GUARD::QAB1(G)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).