MESON Chess Problem Database
Problem Display
PID: 210433 (1n2r2N/1Q1b2P1/1Rq2k1r/1pPB2RP/1N1P3B/4p3/K7/8 w - - 0 1)
Taale, Cornelius J
Deutsche Schachblatter, 1936
#2
12 + 8
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ke7
- 2.Re5#
- 1...Re4
- 2.g8S#
- 1...Re5
- 2.g8S#
- 1...Re6
- 2.g8S#
- 1...Re7
- 2.g8S#
- 1...Rf8
- 2.gxf8Q#
- 1...Bh3
- 2.Re5#
- 2.Qf7#
- 1...Bg4
- 2.Re5#
- 2.Qf7#
- 1...Bf5
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg6#
- 2.Qf7#
- 1...Be6
- 2.Re5#
- 1...Bc8
- 2.Re5#
- 2.Qf7#
- 1...Ke7
- Tries
- 1.Rxc6+?
- 1...Ke7
- 2.Re5#
- 2.Rgg6#
- 1...Re6
- 2.g8S#
- 1...Bxc6
- 2.Re5#
- 2.Qf7#
- 1...Be6
- 2.Re5#
- 2.Qf7#
- 1...Sxc6!
- 1...Ke7
- 1.Qxd7?
- threat
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Re5#
- 2.Rf5#
- 2.Rg6#
- 2.Qf7#
- 1...Rxh5
- 2.Rf5#
- 2.Rxh5#
- 2.Rg6#
- 2.Qf7#
- 1...Qe6
- 2.Re5#
- 2.Qf7#
- 1...Rg6
- 2.Rf5#
- 2.Rxg6#
- 2.Qf7#
- 1...Re4
- 2.Rg4#
- 2.Rf5#
- 2.Rg6#
- 2.Qf7#
- 2.g8S#
- 1...Re5
- 2.Rxe5#
- 2.Rf5#
- 2.Rg6#
- 2.Qf7#
- 2.dxe5#
- 2.g8S#
- 1...Re6
- 2.Re5#
- 2.Qf7#
- 2.g8S#
- 1...Re7
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg6#
- 2.Qf5#
- 2.g8S#
- 1...Rf8
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Re5#
- 2.Rf5#
- 2.Rg6#
- 2.gxf8Q#
- 2.gxf8R#
- 1...Sxd7!
- threat
- 1.g8Q?
- threat
- 2.Re5#
- 2.Qf7#
- 2.Qg7#
- 1...Ke7
- 2.Re5#
- 2.Rg7#
- 1...Rxh5
- 2.Rxh5#
- 2.Qf7#
- 2.Qg7#
- 1...Rg6
- 2.Qf7#
- 1...Rh7
- 2.Re5#
- 1...Re4
- 2.Qf7#
- 2.Qg7#
- 2.Qf8#
- 1...Re5
- 2.Rxe5#
- 2.Qf7#
- 2.Qg7#
- 2.Qf8#
- 1...Re7
- 2.Re5#
- 1...Rf8
- 2.Re5#
- 2.Qg7#
- 2.Qxf8#
- 1...Bf5
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Qgf7#
- 2.Qbf7#
- 2.Qbg7#
- 2.Qgg7#
- 1...Be6
- 2.Re5#
- 2.Qbg7#
- 2.Qgg7#
- 1...Rxg8!
- threat
- 1.Rxc6+?
- Keys
- 1.Be6!
- threat
- 2.Rg6#
- 1...Qg2+
- 2.Rxg2#
- 1...Qd5+
- 2.Sxd5#
- 1...Qxe6+
- 2.Sd5#
- 1...Bxe6+
- 2.Rd5#
- 1...Kxe6
- 2.Re5#
- 1...Ke7
- 2.Rg6#
- 1...Rxe6
- 2.g8S#
- 1...Rg6
- 2.Rxg6#
- threat
- 1.Be6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- K(d);N_SPINQ(c),P_SPINB(f),S_FLIGHT::B(D)+R(G),DCHECK
- R(h);N_GUARD::P=S
- R(h);N_GUARD,N_SPINQ(c)::P=S
- R(h);OGATE::PXR(h)=Q
- B(f);N_SPINQ(c),P_PINB(F)::B(D)+R(G)
- Tries
- Try
- R(I);CHECK,XQ(c)
- Vars
- R(h);N_GUARD,P_SPINR(h),S_CUTB(f),S_CUTB(f),S_CUTS(g)::P=S
- Refutation
- S(g);XR(I)
- Try
- Q(J);XB(f)
- Threat
- DUALS(8)
- Refutation
- S(g);XQ(J)
- Try
- P(K);
- Threat
- DUALS(3)
- Vars
- R(e);::QAR1(K)
- R(e);::B(D)+R(G)
- R(h);::B(D)+R(G)
- Refutation
- R(h);XQ(K)
- Try
- Actual
- B(F);N_PINQ(c)
- Threat
- B(D)+R(G),DCHECK
- Vars
- Q(c);CHECK::B(D)+R(G),XQ(c)
- Q(c);CHECK,N_GUARD::S(B),XQ(c)
- Q(c);CHECK,N_GUARD,P_SPINQ(c),XB(F)::S(B)
- B(f);CHECK,SBLOCK,XB(F)::B(D)+R(G)
- K(d);P-FLIGHT,P_SPINQ(c),XB(F)::R1(G)
- K(d);P_SPINB(f),S_FLIGHT::B(D)+R(G)
- R(h);N_GUARD,SBLOCK,XB(F)::P=S
- R(e);::B(D)+R(G),DCHECK,XR(e)
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).