MESON Chess Problem Database
Problem Display
PID: 64341 (1Q3b2/8/2BP1B1R/1P3p2/5k1p/K6b/5P2/6R1 w - - 0 1)
Waterhouse, T
Chess, 1947
#2
9 + 5
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.Rxh4#
- 1...Bg2
- 2.Rxh4#
- 1...Bxd6+
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bf1
- Tries
- 1.Ka2?
- 1...Bxd6
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6
- 1.Kb2?
- 1...Bxd6
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6
- 1.Kb3?
- 1...Bxd6
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6
- 1.Ka4?
- 1...Bxd6
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6
- 1.Kb4?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Bd5?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Bb7?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Ba8?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Rc1?
- threat
- 2.Rc4#
- 1...Kg4
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Bg2
- 2.Rxh4#
- 1...Bxd6+!
- threat
- 1.Rd1?
- threat
- 2.Rd4#
- 1...Kg4
- 2.Rxh4#
- 1...Bg2
- 2.Rxh4#
- 1...Bxd6+!
- threat
- 1.Rg2?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bxg2
- 2.Rxh4#
- 1...Bxh6
- 2.d7#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Rg5?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bf1
- 2.Rxh4#
- 1...Bg2
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Rgg6?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bf1
- 2.Rxh4#
- 1...Bg2
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Rh5?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Bh6
- 2.d7#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Rh7?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Bh6
- 2.d7#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Rh8?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Bh6
- 2.d7#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Qa7?
- threat
- 2.Qe3#
- 2.Qd4#
- 2.Qa4#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 2.Qe3#
- 2.Qd4#
- 1...Bxd6+!
- threat
- 1.Qc7?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Qb6?
- threat
- 2.Qe3#
- 2.Qd4#
- 1...Bg2
- 2.Rxh4#
- 1...Bxd6+!
- threat
- 1.Qa8?
- threat
- 2.Qa4#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Bxd6+!
- threat
- 1.Qxf8?
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Bg4!
- 1...Bg2
- 1.b6?
- 1...Bxd6+
- 2.Qxd6#
- 1...Bxh6
- 2.d7#
- 1...Bg2
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Be7
- 2.dxe7#
- 1...Bg7
- 2.d7#
- 1...Bg4!
- 1...Bxd6+
- 1.Ka2?
- Keys
- 1.Rb1!
- threat
- 2.Rb4#
- 1...Kg4
- 2.Rxh4#
- 1...Bf1
- 2.Rxh4#
- 1...Bg2
- 2.Rxh4#
- threat
- 1.Rb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- B(a);N_GUARD::R(H),XP(c)
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_PINP(F),XR(H)::QAB(I)+P(F)
- B(e);::QAB(I)+P(F),XB(e)
- B(e);N_PINP(F)::QAB(I)+P(F)
- Tries
- Try
- K(C);N_SPINP(F),P-FLIGHT
- Vars
- B(e);OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_GUARD,XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);OGATE::QAB(I)+P(F),XB(e)
- B(e);N_GUARD::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- K(C);N_SPINP(F),S_FLIGHT
- Vars
- B(e);OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_GUARD,XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);OGATE::QAB(I)+P(F),XB(e)
- B(e);N_GUARD,P_PINB(G)::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- K(C);N_SPINP(F),P-FLIGHT
- Vars
- B(e);OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_GUARD,XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);OGATE::QAB(I)+P(F),XB(e)
- B(e);N_GUARD::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- K(C);N_SPINP(F),P-FLIGHT
- Vars
- B(e);OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_GUARD,XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);OGATE::QAB(I)+P(F),XB(e)
- B(e);N_GUARD::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- K(C);S_FLIGHT
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_PINP(F),XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);::QAB(I)+P(F),XB(e)
- B(e);N_PINP(F)::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- B(E);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_PINP(F),XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);::QAB(I)+P(F),XB(e)
- B(e);N_PINP(F)::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- B(E);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_PINP(F),XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);::QAB(I)+P(F),XB(e)
- B(e);N_PINP(F)::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- B(E);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_PINP(F),XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);::QAB(I)+P(F),XB(e)
- B(e);N_PINP(F)::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- R(A);
- Threat
- R(A)
- Vars
- K(b);P-FLIGHT::R1(H),XP(c)
- B(a);N_GUARD::R(H),XP(c)
- Refutation
- B(e);CHECK,P_SPINB(e),XP(F)
- Try
- R(A);
- Threat
- R(A)
- Vars
- K(b);P-FLIGHT::R1(H),XP(c)
- B(a);N_GUARD::R(H),XP(c)
- Refutation
- B(e);CHECK,P_SPINB(e),XP(F)
- Try
- R(A);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(a);N_GUARD,XR(A)::R(H),XP(c)
- B(e);N_PINP(F),XR(H)::QAB(I)+P(F)
- B(e);::QAB(I)+P(F),XB(e)
- B(e);N_PINP(F)::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- R(A);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_PINP(F),XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);::QAB(I)+P(F),XB(e)
- B(e);N_PINP(F)::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- R(A);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_PINP(F),XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);::QAB(I)+P(F),XB(e)
- B(e);N_PINP(F)::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- R(H);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(a);N_GUARD::R(H),XP(c)
- B(e);N_PINP(F)::QAB(I)+P(F)
- B(e);::QAB(I)+P(F),XB(e)
- Refutation
- B(a);
- Try
- R(H);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(a);N_GUARD::R(H),XP(c)
- B(e);N_PINP(F)::QAB(I)+P(F)
- B(e);::QAB(I)+P(F),XB(e)
- Refutation
- B(a);
- Try
- R(H);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(a);N_GUARD::R(H),XP(c)
- B(e);N_PINP(F)::QAB(I)+P(F)
- B(e);::QAB(I)+P(F),XB(e)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- B(a);N_GUARD::R(H),XP(c)
- Refutation
- B(e);CHECK,XP(F)
- Try
- Q(I);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_PINP(F),XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);::QAB(I)+P(F),XB(e)
- B(e);N_PINP(F)::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- B(a);N_GUARD::R(H),XP(c)
- Refutation
- B(e);CHECK,XP(F)
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- B(a);N_GUARD::R(H),XP(c)
- Refutation
- B(e);CHECK,XP(F)
- Try
- Q(I);N_SPINP(F),XB(e)
- Vars
- B(a);N_GUARD::R(H),XP(c)
- Refutation
- B(a);
- Try
- P(D);
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XP(F)::QAB(I),XB(e)
- B(e);N_PINP(F),XR(H)::QAB(I)+P(F)
- B(a);N_GUARD::R(H),XP(c)
- B(e);::QAB(I)+P(F),XB(e)
- B(e);N_PINP(F)::QAB(I)+P(F)
- Refutation
- B(a);
- Try
- Actual
- R(A);
- Threat
- R(A)
- Vars
- K(b);P-FLIGHT::R1(H),XP(c)
- B(a);N_GUARD::R(H),XP(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).