MESON Chess Problem Database
Problem Display
PID: 165440 (8/3R4/4n3/4Np2/3pkb1Q/3NP3/8/4K2R w K - 0 1)
Ouellet, Charles
The Problemist Supplement, 2017
#2
7 + 5
SOLUTION
- SOUND
- Sets
- 1...Sc5
- 2.Qxf4#
- 1...Sg5
- 2.Qxf4#
- 1...Sc7
- 2.Qxf4#
- 1...Sg7
- 2.Qxf4#
- 1...Sd8
- 2.Qxf4#
- 1...Sf8
- 2.Qxf4#
- 1...Sc5
- Tries
- 1.Kd1?
- 1...Kxe3
- 2.Re1#
- 2.Qe1#
- 1...Sc5
- 2.Qxf4#
- 1...Sg5
- 2.Qxf4#
- 1...Sc7
- 2.Qxf4#
- 1...Sg7
- 2.Qxf4#
- 1...Sd8
- 2.Qxf4#
- 1...Sf8
- 2.Qxf4#
- 1...dxe3!
- 1...Kxe3
- 1.Kf1?
- 1...Kxe3
- 2.Qe1#
- 1...Sc5
- 2.Qxf4#
- 1...Sg5
- 2.Qxf4#
- 1...Sc7
- 2.Qxf4#
- 1...Sg7
- 2.Qxf4#
- 1...Sd8
- 2.Qxf4#
- 1...Sf8
- 2.Qxf4#
- 1...dxe3!
- 1...Kxe3
- 1.Kd2?
- 1...Sc5
- 2.Rxd4#
- 2.Qxf4#
- 1...Sg5
- 2.Rxd4#
- 2.Qxf4#
- 1...Sc7
- 2.Rxd4#
- 2.Qxf4#
- 1...Sg7
- 2.Rxd4#
- 2.Qxf4#
- 1...Sd8
- 2.Rxd4#
- 2.Qxf4#
- 1...Sf8
- 2.Rxd4#
- 2.Qxf4#
- 1...dxe3+!
- 1...Sc5
- 1.Ke2?
- 1...Sc5
- 2.Rxd4#
- 2.Qxf4#
- 1...Sg5
- 2.Rxd4#
- 2.Qxf4#
- 1...Sc7
- 2.Rxd4#
- 2.Qxf4#
- 1...Sg7
- 2.Rxd4#
- 2.Qxf4#
- 1...Sd8
- 2.Rxd4#
- 2.Qxf4#
- 1...Sf8
- 2.Rxd4#
- 2.Qxf4#
- 1...dxe3!
- 1...Sc5
- 1.Kf2?
- 1...Sc5
- 2.Rxd4#
- 2.Qxf4#
- 1...Sg5
- 2.Rxd4#
- 2.Qxf4#
- 1...Sc7
- 2.Rxd4#
- 2.Qxf4#
- 1...Sg7
- 2.Rxd4#
- 2.Qxf4#
- 1...Sd8
- 2.Rxd4#
- 2.Qxf4#
- 1...Sf8
- 2.Rxd4#
- 2.Qxf4#
- 1...dxe3+!
- 1...Sc5
- 1.Sc5+?
- 1...Kxe3
- 2.Qf2#
- 1...Sxc5
- 2.Qxf4#
- 1...Kxe5!
- 1...Kxe3
- 1.Rf1?
- 1...dxe3
- 2.Qh1#
- 1...Sc5
- 2.Qxf4#
- 1...Sg5
- 2.Qxf4#
- 1...Sc7
- 2.Qxf4#
- 1...Sg7
- 2.Qxf4#
- 1...Sd8
- 2.Qxf4#
- 1...Sf8
- 2.Qxf4#
- 1...Kxe3!
- 1...dxe3
- 1.Rg1?
- 1...dxe3
- 2.Qh1#
- 1...Sc5
- 2.Qxf4#
- 1...Sg5
- 2.Qxf4#
- 1...Sc7
- 2.Qxf4#
- 1...Sg7
- 2.Qxf4#
- 1...Sd8
- 2.Qxf4#
- 1...Sf8
- 2.Qxf4#
- 1...Kxe3!
- 1...dxe3
- 1.Rh2?
- 1...Kxe3
- 2.Re2#
- 1...Sc5
- 2.Qxf4#
- 1...Sg5
- 2.Qxf4#
- 1...Sc7
- 2.Qxf4#
- 1...Sg7
- 2.Qxf4#
- 1...Sd8
- 2.Qxf4#
- 1...Sf8
- 2.Qxf4#
- 1...dxe3!
- 1...Kxe3
- 1.Rh3?
- 1...Sc5
- 2.Rxd4#
- 2.Qxf4#
- 1...Sg5
- 2.Rxd4#
- 2.Qxf4#
- 1...Sc7
- 2.Rxd4#
- 2.Qxf4#
- 1...Sg7
- 2.Rxd4#
- 2.Qxf4#
- 1...Sd8
- 2.Rxd4#
- 2.Qxf4#
- 1...Sf8
- 2.Rxd4#
- 2.Qxf4#
- 1...dxe3!
- 1...Sc5
- 1.Rxd4+?
- 1...Kxe3
- 2.Qf2#
- 1...Sxd4!
- 1...Kxe3
- 1.Qg3?
- threat
- 2.Qf3#
- 1...Bxe5
- 2.Sf2#
- 1...Sg5
- 2.Rxd4#
- 2.Qxf4#
- 1...Bxg3+!
- threat
- 1.Qh3?
- threat
- 2.Qf3#
- 1...Bxe5
- 2.Sf2#
- 1...Sg5
- 2.Rxd4#
- 1...Bg3+!
- threat
- 1.Qg4?
- threat
- 2.Qf3#
- 1...Kxe3
- 2.Qe2#
- 2.Qf3#
- 1...Sg5
- 2.Qxf4#
- 1...fxg4!
- threat
- 1.exd4?
- 1...Sxd4
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Sg5
- 2.Qxf4#
- 1...Sc7
- 2.Qxf4#
- 1...Sg7
- 2.Qxf4#
- 1...Sd8
- 2.Qxf4#
- 1...Sf8
- 2.Qxf4#
- 1...Ke3!
- 1...Sxd4
- 1.Kd1?
- Keys
- 1.0-0!
- 1...Kxe3
- 2.Qe1#
- 1...dxe3
- 2.Qh1#
- 1...Sc5
- 2.Qxf4#
- 1...Sg5
- 2.Qxf4#
- 1...Sc7
- 2.Qxf4#
- 1...Sg7
- 2.Qxf4#
- 1...Sd8
- 2.Qxf4#
- 1...Sf8
- 2.Qxf4#
- 1...Kxe3
- 1.0-0!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(e);N_GUARD::QAR1(E),XB(c)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(e);N_GUARD::QAR1(E),XB(c)
- Refutation
- P(a);XP(D)
- Try
- K(A);P-FLIGHT
- Vars
- K(b);N_SPINB(c),OGATEB,P-FLIGHT,XP(D)::QAR2(E)
- S(e);N_GUARD::QAR1(E),XB(c)
- Refutation
- P(a);XP(D)
- Try
- K(A);P_SPINP(D),S_FLIGHT
- Refutation
- P(a);CHECK,XP(D)
- Try
- K(A);P-FLIGHT
- Refutation
- P(a);XP(D)
- Try
- K(A);S_FLIGHT
- Refutation
- P(a);CHECK,XP(D)
- Try
- S(C);CHECK
- Vars
- K(b);N_SPINB(c),P-FLIGHT,XP(D)::QAB1(E)
- S(e);XS(C)::QAR1(E),XB(c)
- Refutation
- K(b);N_SPINB(c),P-FLIGHT,XS(F)
- Try
- R(B);
- Vars
- P(a);SBLOCK,XP(D)::QAB(E)
- S(e);N_GUARD::QAR1(E),XB(c)
- Refutation
- K(b);N_SPINB(c),P-FLIGHT,XP(D)
- Try
- R(B);
- Vars
- P(a);SBLOCK,XP(D)::QAB(E)
- S(e);N_GUARD::QAR1(E),XB(c)
- Refutation
- K(b);N_SPINB(c),P-FLIGHT,XP(D)
- Try
- R(B);
- Vars
- K(b);N_SPINB(c),OGATEB,P-FLIGHT,XP(D)::R1(B)
- S(e);N_GUARD::QAR1(E),XB(c)
- Refutation
- P(a);XP(D)
- Try
- R(B);
- Refutation
- P(a);XP(D)
- Try
- R(G);CHECK,XP(a)
- Vars
- K(b);N_SPINB(c),P-FLIGHT,XP(D)::QAB1(E)
- Refutation
- S(e);XR(G)
- Try
- Q(E);N_PINB(c)
- Threat
- QAB1(E)
- Vars
- B(c);XS(F)::S(C)
- Refutation
- B(c);CHECK,XQ(E)
- Try
- Q(E);N_PINB(c)
- Threat
- QAB1(E)
- Vars
- B(c);SBLOCK,XS(F)::S(C)
- S(e);N_GUARD::R1(G),XP(a)
- Refutation
- B(c);CHECK
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(e);N_GUARD::QAR1(E),XB(c)
- Refutation
- P(d);N_SPINB(c),XQ(E)
- Try
- P(D);XP(a)
- Vars
- S(e);N_GUARD,XP(D)::QAR1(E),XB(c)
- S(e);N_GUARD::QAR1(E),XB(c)
- Refutation
- K(b);N_SPINB(c),P-FLIGHT
- Try
- Actual
- K(A);0-0
- Vars
- K(b);N_SPINB(c),OGATEB,P-FLIGHT,XP(D)::QAR2(E)
- P(a);SBLOCK,XP(D)::QAB(E)
- S(e);N_GUARD::QAR1(E),XB(c)
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).