MESON Chess Problem Database
Problem Display
PID: 252956 (5b1Q/nP2kN2/1pb1pNP1/1p3P2/1K6/8/2R5/3R4 w - - 0 1)
Russ, Colin Albert Harry
Deutsche Schachzeitung, 1985
#2
9 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Rd7#
- 2.Rc7#
- 1...Bg2
- 2.Rd7#
- 2.Rc7#
- 1...Bf3
- 2.Rd7#
- 2.Rc7#
- 1...Be4
- 2.Rd7#
- 2.Rc7#
- 1...Bd5
- 2.Rc7#
- 1...Bxb7
- 2.Rd7#
- 2.Rc7#
- 1...Bd7
- 2.Rxd7#
- 1...Be8
- 2.Sg8#
- 1...Bh6
- 2.Qd8#
- 1...Bg7
- 2.Qd8#
- 1...Sc8
- 2.bxc8S#
- 1...Bh1
- Tries
- 1.Sh7?
- threat
- 2.Qxf8#
- 1...Ke8+
- 2.Qxf8#
- 1...exf5
- 2.Qe5#
- 1...Bh6
- 2.Qd8#
- 2.f6#
- 1...Bg7
- 2.Qd8#
- 1...Bd5!
- threat
- 1.Re1?
- threat
- 2.Rxe6#
- 1...Be4
- 2.Rc7#
- 1...Bd5
- 2.Rc7#
- 1...e5
- 2.Rxe5#
- 1...Bd7!
- threat
- 1.Rd6?
- threat
- 2.Rxe6#
- 1...Bd7
- 2.Rxd7#
- 1...Bd5
- 2.Rc7#
- 2.Rd7#
- 1...e5
- 2.Re6#
- 1...exf5!
- threat
- 1.Re2?
- threat
- 2.Rxe6#
- 1...Bd7
- 2.Rxd7#
- 1...Be4
- 2.Rd7#
- 1...e5
- 2.Rxe5#
- 1...Bd5!
- threat
- 1.Rc5?
- 1...Bxb7
- 2.Rd7#
- 2.Rc7#
- 1...exf5
- 2.Re5#
- 1...Bg7
- 2.Qd8#
- 1...Bd7
- 2.Rxd7#
- 1...Bh1
- 2.Rd7#
- 2.Rc7#
- 1...Bg2
- 2.Rd7#
- 2.Rc7#
- 1...Bf3
- 2.Rd7#
- 2.Rc7#
- 1...Be4
- 2.Rd7#
- 2.Rc7#
- 1...Bd5
- 2.Rc7#
- 1...Be8
- 2.Sg8#
- 1...Bh6
- 2.Qd8#
- 1...Sc8
- 2.bxc8S#
- 1...e5
- 2.Rxe5#
- 1...bxc5+!
- 1...Bxb7
- 1.Rxc6?
- threat
- 2.Rd7#
- 2.Rxe6#
- 2.Rc7#
- 1...exf5
- 2.Re1#
- 2.Rd7#
- 1...Bg7
- 2.Rxe6#
- 2.Qd8#
- 1...e5
- 2.Rd7#
- 2.Re6#
- 2.Rc7#
- 1...Sxc6+!
- threat
- 1.b8Q?
- threat
- 2.Sg8#
- 2.Qd6#
- 2.Qd8#
- 2.Qbxf8#
- 1...exf5
- 2.Qe5#
- 2.Qd6#
- 1...Bg7
- 2.Sg8#
- 2.Qbd8#
- 2.Qhd8#
- 1...Bd5
- 2.Rc7#
- 2.Qd6#
- 2.Qc7#
- 2.Qd8#
- 2.Qe8#
- 2.Qbxf8#
- 1...Be8
- 2.Sg8#
- 2.Qd6#
- 2.Qd8#
- 2.Qxe8#
- 1...Bh6
- 2.Sg8#
- 2.Qd6#
- 2.Qbd8#
- 2.Qhd8#
- 1...Sc8!
- threat
- 1.Sh7?
- Keys
- 1.Rd5!
- 1...Bxd5
- 2.Rc7#
- 1...Bxb7
- 2.Rc7#
- 2.Rd7#
- 1...exd5
- 2.Re2#
- 1...exf5
- 2.Re2#
- 2.Re5#
- 1...Bg7
- 2.Qd8#
- 1...Bd7
- 2.Rxd7#
- 1...Be8
- 2.Sg8#
- 1...Bh6
- 2.Qd8#
- 1...Sc8
- 2.bxc8S#
- 1...e5
- 2.Rxe5#
- 1...Bxd5
- 1.Rd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(c);OGATE::R(B)
- B(c);N_GUARD::R1(A),XB(c)
- B(c);SBLOCK::S(E)
- B(g);OGATE::QAB1(I)
- S(e);OGATE::PXS(e)=S
- Tries
- Try
- S(E);
- Threat
- QAB1(I),XB(g)
- Vars
- K(f);CHECK,P-FLIGHT,P_SPINB(g)::QAR1(I),XB(g)
- P(d);OGATEB,XP(D)::QAR2(I)
- B(g);OGATE::QAB1(I)
- Refutation
- B(c);
- Try
- R(A);P_PINP(d)
- Threat
- R1(A),XP(d)
- Vars
- B(c);N_SPINP(d),OGATE::R(B)
- B(c);OGATE::R(B)
- P(d);OGATEB::R(A),XP(d)
- Refutation
- B(c);
- Try
- R(A);
- Threat
- R1(A),XP(d)
- Vars
- B(c);N_GUARD::R1(A),XB(c)
- P(d);::R1(A)
- Refutation
- P(d);XP(D)
- Try
- R(B);P_PINP(d)
- Threat
- R1(B),XP(d)
- Vars
- B(c);N_GUARD::R1(A),XB(c)
- B(c);N_GUARD,N_SPINP(d)::R1(A)
- P(d);OGATEB::R(B),XP(d)
- Refutation
- B(c);
- Try
- R(B);
- Vars
- P(d);OGATEB,XP(D)::R(B)
- B(g);OGATE::QAB1(I)
- B(c);N_GUARD::R1(A),XB(c)
- B(c);OGATE::R(B)
- B(c);SBLOCK::S(E)
- S(e);OGATE::PXS(e)=S
- P(d);OGATEB::R(B),XP(d)
- Refutation
- P(b);CHECK,XR(B)
- Try
- R(B);XB(c)
- Threat
- DUALS(3)
- Refutation
- S(e);CHECK,XR(B)
- Try
- P(G);
- Threat
- DUALS(4)
- Refutation
- S(e);
- Try
- Actual
- R(A);
- Vars
- B(c);OGATE,XR(A)::R(B)
- P(d);OGATEB,XR(A)::R(B)
- B(g);OGATE::QAB1(I)
- B(c);N_GUARD::R1(A),XB(c)
- B(c);SBLOCK::S(E)
- S(e);OGATE::PXS(e)=S
- P(d);OGATEB::R(A),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).