MESON Chess Problem Database
Problem Display
PID: 277951 (8/4K3/1p6/R1n1kp1R/2Q5/6rr/7B/3N4 w - - 0 1)
Caillaud, Michel
diagrammes, 1981
#2
6 + 6
SOLUTION
- SOUND
- Tries
- 1.Se3?
- threat
- 2.Sg4#
- 2.Rxf5#
- 1...Rxh2
- 2.Rxf5#
- 1...Rh4
- 2.Rxf5#
- 1...Rxh5!
- threat
- 1.Qd3?
- threat
- 2.Rxf5#
- 1...Kf4
- 2.Qxf5#
- 1...Rxh5!
- threat
- 1.Qd5+?
- 1...Kf4
- 2.Qxf5#
- 1...Kxd5!
- 1...Kf4
- 1.Qe6+?
- 1...Kf4
- 2.Qxf5#
- 1...Kd4!
- 1...Kf4
- 1.Se3?
- Keys
- 1.Sf2!
- threat
- 2.Sd3#
- 2.Sg4#
- 2.Qe4#
- 1...Rxh2
- 2.Qe4#
- 1...Rxh5
- 2.Sd3#
- 1...bxa5
- 2.Sg4#
- 1...Rh4
- 2.Sd3#
- 1...b5
- 2.Sg4#
- threat
- 1.Sf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- R(b);N_SPINR(a),XB(B)::R1(E),XP(e)
- R(b);::R1(E),XP(e)
- Refutation
- R(b);N_SPINP(e),XR(E)
- Try
- Q(C);
- Threat
- R1(E),XP(e)
- Vars
- K(d);N_GUARD,N_SPINP(e),N_SPINS(c),S_FLIGHT::QAR1(C),XP(e)
- Refutation
- R(b);N_SPINP(e),XR(E)
- Try
- Q(C);CHECK,N_PINS(c)
- Vars
- K(d);N_SPINP(e),OGATE,S_FLIGHT::QAR1(C),XP(e)
- Refutation
- K(d);N_SPINR(a),P-FLIGHT,P_SPINS(c),XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(d);N_GUARD,N_SPINP(e),N_SPINS(c),S_FLIGHT::QAR1(C),XP(e)
- Refutation
- K(d);N_SPINP(e),N_SPINR(a),N_SPINS(c),S_FLIGHT
- Try
- Actual
- S(A);
- Threat
- DUALS(3)
- Vars
- R(b);N_SPINR(a),XB(B)::QAR1(C)
- R(b);N_SPINP(e),XR(E)::S(A)
- P(f);N_SPINS(c),XR(D)::S(A)
- R(b);::S(A)
- P(f);N_SPINS(c)::S(A)
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).