MESON Chess Problem Database
Problem Display
PID: 221325 (8/1nrPN2K/7R/2k5/5Q2/b2Bn3/1r6/B7 w - - 0 1)
Goulty, Allison Howard
The Problemist, 1944
#2
7 + 6
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qd4#
- 1...Ra2
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Rd2
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rg2
- 2.Qd4#
- 1...Rh2
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rb4
- 2.Qxc7#
- 1...Rb5
- 2.Qd4#
- 1...Rb6
- 2.Qd4#
- 1...Rc6
- 2.Rxc6#
- 1...Rxd7
- 2.Rc6#
- 1...Rc8
- 2.dxc8Q#
- 2.dxc8R#
- 1...Bb4
- 2.Qxe3#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sa5
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sd8
- 2.Qd6#
- 1...Rb1
- Tries
- 1.Kg8?
- 1...Rc8+
- 2.dxc8Q#
- 2.dxc8R#
- 1...Rxd7
- 2.Rc6#
- 1...Rc6
- 2.Rxc6#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Qxd6#
- 1...Rb1
- 2.Qd4#
- 1...Ra2
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Rd2
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rh2
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rb4
- 2.Qxc7#
- 1...Rb5
- 2.Qd4#
- 1...Rb6
- 2.Qd4#
- 1...Bb4
- 2.Qxe3#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sa5
- 2.Qd6#
- 1...Sd8
- 2.Qd6#
- 1...Rg2+!
- 1...Rc8+
- 1.Bxb2?
- threat
- 2.Bxa3#
- 2.Qd4#
- 1...Rxd7
- 2.Bxa3#
- 2.Rc6#
- 1...Rc6
- 2.Rxc6#
- 2.Qd4#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Qxd6#
- 2.Qd4#
- 1...Bb4
- 2.Bd4#
- 2.Qxe3#
- 2.Qxc7#
- 2.Qd4#
- 1...Sc2
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 2.Qd4#
- 1...Sf5
- 2.Bxa3#
- 2.Qc4#
- 1...Bxb2!
- threat
- 1.Ba6?
- 1...Rxd7
- 2.Rc6#
- 1...Rc6
- 2.Rxc6#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Qxd6#
- 1...Rb1
- 2.Qd4#
- 1...Ra2
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rg2
- 2.Qd4#
- 1...Rh2
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rb4
- 2.Qxc7#
- 1...Rb5
- 2.Qd4#
- 1...Rb6
- 2.Qd4#
- 1...Rc8
- 2.dxc8Q#
- 2.dxc8R#
- 1...Bb4
- 2.Qxe3#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sa5
- 2.Qd6#
- 1...Sd8
- 2.Qd6#
- 1...Rd2!
- 1...Rxd7
- 1.Ra6?
- 1...Rxd7
- 2.Rc6#
- 1...Sc4
- 2.Qxc4#
- 1...Rd2
- 2.Qd4#
- 1...Rb1
- 2.Qd4#
- 1...Ra2
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rg2
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rb4
- 2.Qxc7#
- 1...Rb5
- 2.Qd4#
- 1...Rb6
- 2.Qd4#
- 1...Rc6
- 2.Rxc6#
- 1...Rc8
- 2.dxc8Q#
- 2.dxc8R#
- 1...Bb4
- 2.Qxe3#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sa5
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sd8
- 2.Qd6#
- 1...Rh2+!
- 1...Rxd7
- 1.Re6?
- 1...Rxd7
- 2.Rc6#
- 1...Rc6
- 2.Rxc6#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Qxd6#
- 1...Rd2
- 2.Qd4#
- 1...Rb1
- 2.Qd4#
- 1...Ra2
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rg2
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rb4
- 2.Qxc7#
- 1...Rb5
- 2.Qd4#
- 1...Rb6
- 2.Qd4#
- 1...Rc8
- 2.dxc8Q#
- 2.dxc8R#
- 1...Bb4
- 2.Qxe3#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sa5
- 2.Qd6#
- 1...Sd8
- 2.Qd6#
- 1...Rh2+!
- 1...Rxd7
- 1.Rf6?
- 1...Rxd7
- 2.Rc6#
- 1...Rc6
- 2.Rxc6#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Qxd6#
- 1...Rd2
- 2.Qd4#
- 1...Rb1
- 2.Qd4#
- 1...Ra2
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rg2
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rb4
- 2.Qxc7#
- 1...Rb5
- 2.Qd4#
- 1...Rb6
- 2.Qd4#
- 1...Rc8
- 2.dxc8Q#
- 2.dxc8R#
- 1...Bb4
- 2.Qxe3#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sa5
- 2.Qd6#
- 1...Sd8
- 2.Qd6#
- 1...Rh2+!
- 1...Rxd7
- 1.Rg6?
- 1...Rxd7
- 2.Rc6#
- 1...Rc6
- 2.Rxc6#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Qxd6#
- 1...Rd2
- 2.Qd4#
- 1...Rb1
- 2.Qd4#
- 1...Ra2
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rg2
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rb4
- 2.Qxc7#
- 1...Rb5
- 2.Qd4#
- 1...Rb6
- 2.Qd4#
- 1...Rc8
- 2.dxc8Q#
- 2.dxc8R#
- 1...Bb4
- 2.Qxe3#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sa5
- 2.Qd6#
- 1...Sd8
- 2.Qd6#
- 1...Rh2+!
- 1...Rxd7
- 1.d8Q?
- threat
- 2.Qdxc7#
- 2.Qfd4#
- 2.Qdd4#
- 1...Sxd8
- 2.Qd6#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Qfxd6#
- 2.Qxc7#
- 2.Qdxd6#
- 1...Rb4
- 2.Qfxc7#
- 2.Qdxc7#
- 1...Rb6
- 2.Qfd4#
- 2.Qdd4#
- 1...Rc6
- 2.Rxc6#
- 2.Qfd4#
- 2.Qdd4#
- 1...Rd7
- 2.Rc6#
- 1...Rc8
- 2.Qfd4#
- 2.Qdd4#
- 2.Qxc8#
- 1...Sc2
- 2.Qdxc7#
- 2.Qc4#
- 2.Qd5#
- 1...Sd5
- 2.Qc4#
- 2.Qxd5#
- 1...Sf5
- 2.Qdxc7#
- 2.Qc4#
- 2.Qd5#
- 1...Sa5
- 2.Qfd6#
- 2.Qfd4#
- 2.Qdd4#
- 2.Qdd6#
- 1...Rxe7+!
- threat
- 1.d8R?
- threat
- 2.Qd4#
- 1...Sxd8
- 2.Qd6#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Qxd6#
- 1...Rb4
- 2.Qxc7#
- 1...Rd7
- 2.Rc6#
- 1...Sc2
- 2.Rd5#
- 2.Qc4#
- 1...Sd5
- 2.Rxd5#
- 2.Qc4#
- 1...Sf5
- 2.Rd5#
- 2.Qc4#
- 1...Rxe7+!
- threat
- 1.Kg8?
- Keys
- 1.Kh8!
- 1...Rc8+
- 2.dxc8Q#
- 2.dxc8R#
- 1...Rxd7
- 2.Rc6#
- 1...Rc6
- 2.Rxc6#
- 1...Sc4
- 2.Qxc4#
- 1...Sd6
- 2.Qxd6#
- 1...Rb1
- 2.Qd4#
- 1...Ra2
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Rd2
- 2.Qd4#
- 1...Re2
- 2.Qd4#
- 1...Rf2
- 2.Qd4#
- 1...Rg2
- 2.Qd4#
- 1...Rh2
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rb4
- 2.Qxc7#
- 1...Rb5
- 2.Qd4#
- 1...Rb6
- 2.Qd4#
- 1...Bb4
- 2.Qxe3#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 1...Sf5
- 2.Qc4#
- 1...Sa5
- 2.Qd6#
- 1...Sd8
- 2.Qd6#
- 1...Rc8+
- 1.Kh8!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);::QAB1(C)
- R(a);P_PINR(D)::QAB1(C)
- R(a);SBLOCK::QAR2(C),XR(f)
- R(f);N_GUARD::R1(D),XR(f)
- R(f);N_GUARD,P_PINS(F),XP(E)::R1(D)
- R(f);OGATE::PXR(f)=Q
- B(b);SBLOCK::QAB(C),XS(c)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- S(e);N_GUARD::QAB1(C)
- S(e);N_GUARD::QAB1(C),XS(e)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- R(f);CHECK,OGATE::PXR(f)=Q
- R(f);N_GUARD,XP(E)::R1(D)
- R(f);N_GUARD::R1(D),XR(f)
- S(c);N_GUARD::QAR1(C),XS(c)
- S(e);N_GUARD::QAB1(C),XS(e)
- R(a);::QAB1(C)
- R(a);SBLOCK::QAR2(C),XR(f)
- B(b);SBLOCK::QAB(C),XS(c)
- S(c);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAB1(C)
- Refutation
- R(a);CHECK
- Try
- B(A);XR(a)
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::QAR1(C),XS(c)
- S(c);N_GUARD::QAR1(C)
- Refutation
- B(b);XB(A)
- Try
- B(B);
- Vars
- R(f);N_GUARD,P_PINS(F),XP(E)::R1(D)
- R(f);N_GUARD::R1(D),XR(f)
- S(c);N_GUARD::QAR1(C),XS(c)
- S(e);N_GUARD::QAB1(C),XS(e)
- R(a);::QAB1(C)
- R(a);P_PINR(D)::QAB1(C)
- R(a);SBLOCK::QAR2(C),XR(f)
- R(f);OGATE::PXR(f)=Q
- B(b);SBLOCK::QAB(C),XS(c)
- S(c);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAB1(C)
- Refutation
- R(a);
- Try
- R(D);
- Vars
- R(f);N_GUARD,P_PINS(F),XP(E)::R1(D)
- S(c);N_GUARD::QAR1(C),XS(c)
- R(a);::QAB1(C)
- R(a);SBLOCK::QAR2(C),XR(f)
- R(f);N_GUARD::R1(D),XR(f)
- R(f);OGATE::PXR(f)=Q
- B(b);SBLOCK::QAB(C),XS(c)
- S(c);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAB1(C)
- S(e);N_GUARD::QAB1(C),XS(e)
- Refutation
- R(a);CHECK
- Try
- R(D);
- Vars
- R(f);N_GUARD,P_PINS(F),XP(E)::R1(D)
- R(f);N_GUARD::R1(D),XR(f)
- S(c);N_GUARD::QAR1(C),XS(c)
- S(e);N_GUARD::QAB1(C),XS(e)
- R(a);::QAB1(C)
- R(a);SBLOCK::QAR2(C),XR(f)
- R(f);OGATE::PXR(f)=Q
- B(b);SBLOCK::QAB(C),XS(c)
- S(c);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAB1(C)
- Refutation
- R(a);CHECK
- Try
- R(D);
- Vars
- R(f);N_GUARD,P_PINS(F),XP(E)::R1(D)
- R(f);N_GUARD::R1(D),XR(f)
- S(c);N_GUARD::QAR1(C),XS(c)
- S(e);N_GUARD::QAB1(C),XS(e)
- R(a);::QAB1(C)
- R(a);SBLOCK::QAR2(C),XR(f)
- R(f);OGATE::PXR(f)=Q
- B(b);SBLOCK::QAB(C),XS(c)
- S(c);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAB1(C)
- Refutation
- R(a);CHECK
- Try
- R(D);
- Vars
- R(f);N_GUARD,P_PINS(F),XP(E)::R1(D)
- R(f);N_GUARD::R1(D),XR(f)
- S(c);N_GUARD::QAR1(C),XS(c)
- S(e);N_GUARD::QAB1(C),XS(e)
- R(a);::QAB1(C)
- R(a);SBLOCK::QAR2(C),XR(f)
- R(f);OGATE::PXR(f)=Q
- B(b);SBLOCK::QAB(C),XS(c)
- S(c);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAB1(C)
- Refutation
- R(a);CHECK
- Try
- P(E);P_SPINS(F)
- Threat
- DUALS(3)
- Vars
- S(e);N_GUARD,XQ(E)::QAB1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- R(f);N_GUARD::R1(D)
- Refutation
- R(f);CHECK,XS(F)
- Try
- P(E);P_SPINS(F)
- Threat
- QAB1(C)
- Vars
- S(e);N_GUARD,XR(E)::QAB1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- S(e);N_GUARD::QAB1(C),XS(e)
- R(a);SBLOCK::QAR2(C),XR(f)
- R(f);N_GUARD::R1(D)
- Refutation
- R(f);CHECK,XS(F)
- Try
- Actual
- K(G);P-FLIGHT
- Vars
- R(f);CHECK,OGATE::PXR(f)=Q
- R(f);N_GUARD,XP(E)::R1(D)
- R(f);N_GUARD::R1(D),XR(f)
- S(c);N_GUARD::QAR1(C),XS(c)
- S(e);N_GUARD::QAB1(C),XS(e)
- R(a);::QAB1(C)
- R(a);P_PINR(D)::QAB1(C)
- R(a);SBLOCK::QAR2(C),XR(f)
- B(b);SBLOCK::QAB(C),XS(c)
- S(c);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAB1(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).