MESON Chess Problem Database
Problem Display
PID: 72416 (3K4/1p6/1pk2N1R/3n4/P3N3/2p5/6rB/2R3QB w - - 0 1)
Gamage, Frederick
Washington Star, 1941
#2
9 + 6
| 5397 | Frederick Gamage (Prcic) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Sb4
- 2.Rxc3#
- 1...Sf4
- 2.Rxc3#
- 1...Sc7
- 2.Rxc3#
- 1...Se7
- 2.Rxc3#
- 1...b5
- 2.Qc5#
- 1...Sb4
- Tries
- 1.Sxd5+?
- 1...Rg6
- 2.Sb4#
- 2.Se7#
- 1...Kxd5!
- 1...Rg6
- 1.Sd7+?
- 1...Rg6
- 2.Se5#
- 2.Sb8#
- 1...Sf6!
- 1...Rg6
- 1.Sg8+?
- 1...Sf6
- 2.Se7#
- 1...Rg6!
- 1...Sf6
- 1.Qd4?
- threat
- 2.Qc4#
- 2.Qxd5#
- 1...Sxf6
- 2.Rxc3#
- 2.Rxf6#
- 2.Qc4#
- 2.Qd6#
- 2.Qd7#
- 1...Rd2
- 2.Sxd5#
- 2.Qc4#
- 1...Rg5
- 2.Qc4#
- 1...Se3
- 2.Sg4#
- 2.Qd6#
- 2.Qd7#
- 1...Sb4
- 2.Sg4#
- 2.Rxc3#
- 2.Qxc3#
- 2.Qc4#
- 2.Qd6#
- 2.Qd7#
- 1...Sf4
- 2.Rxc3#
- 2.Qxc3#
- 2.Qc4#
- 2.Qd6#
- 2.Qd7#
- 1...Sc7
- 2.Rxc3#
- 2.Qxc3#
- 2.Qc4#
- 2.Qd6#
- 2.Qd7#
- 1...Se7
- 2.Rxc3#
- 2.Qxc3#
- 2.Qc4#
- 2.Qd6#
- 2.Qd7#
- 1...b5
- 2.Qc5#
- 1...Rg8+!
- threat
- 1.Sxd5+?
- Keys
- 1.Sxc3!
- 1...Rg8+
- 2.Sxg8#
- 1...Rxg1
- 2.Sd1#
- 1...Rxh2
- 2.Sh5#
- 1...Sxc3
- 2.Bxg2#
- 2.Rxc3#
- 1...Sxf6
- 2.Bxg2#
- 2.Rxf6#
- 1...Rf2
- 2.Se2#
- 1...Rg3
- 2.Sg4#
- 1...Se3
- 2.Sd7#
- 1...Sf4
- 2.Sb5#
- 1...Ra2
- 2.Sxa2#
- 2.Sg4#
- 2.Sfxd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Bxd5#
- 1...Rb2
- 2.Sg4#
- 2.Sfxd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Bxd5#
- 1...Rc2
- 2.Sg4#
- 2.Sfxd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Bxd5#
- 1...Rd2
- 2.Sg4#
- 2.Sfxd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Re2
- 2.Sxe2#
- 2.Bxd5#
- 1...Rg4
- 2.Sxg4#
- 2.Bxd5#
- 1...Rg5
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se2#
- 2.Sb5#
- 2.Scxd5#
- 1...Rg6
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se2#
- 2.Sb5#
- 2.Scxd5#
- 2.Bxd5#
- 1...Rg7
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se2#
- 2.Sb5#
- 2.Scxd5#
- 2.Bxd5#
- 1...Sb4
- 2.Sg4#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Sc7
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se2#
- 2.Sb5#
- 1...Se7
- 2.Sb1#
- 2.Sd1#
- 2.Sa2#
- 2.Se2#
- 2.Sb5#
- 1...b5
- 2.axb5#
- 1...Rg8+
- 1.Sxc3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- S(c);N_GUARD::R(A),XP(b)
- P(d);N_GUARD::QAR1(B)
- Tries
- Try
- S(G);CHECK,XS(c)
- Refutation
- K(e);N_SPINP(b),S_FLIGHT,XS(G)
- Try
- S(G);CHECK
- Refutation
- S(c);P_SPINS(c)
- Try
- S(G);CHECK
- Vars
- S(c);P_SPINS(c)::S(G)
- Refutation
- R(a);P_SPINR(a)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(a);::QAR2(B)
- P(d);N_GUARD::QAR1(B)
- Refutation
- R(a);CHECK
- Try
- Actual
- S(F);XP(b)
- Vars
- R(a);CHECK,N_GUARD,P_SPINS(c)::R(H)+S(G),XR(a)
- R(a);N_GUARD,P_SPINS(c),XQ(B)::R(A)+S(F)
- R(a);N_GUARD,P_SPINS(c),XB(D)::R(H)+S(G)
- R(a);P_SPINS(c)::R(A)+S(F)
- R(a);P_SPINS(c)::R(H)+S(G)
- S(c);N_GUARD,P_SPINR(a)::R(H)+S(G)
- S(c);N_GUARD,P_SPINR(a)::R(A)+S(F)
- P(d);OGATE::P(E),XP(d)
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).