MESON Chess Problem Database
Problem Display
PID: 9979 (b1r1r2B/8/1p4p1/6R1/QN1Nkp2/R3Pp2/2P2p1p/2K2B2 w - - 0 1)
Chepizhni, Viktor Ivanovich
Loshinski, Lev Ilich
1st Prize, Die Schwalbe, 1961
#2
10 + 10
| 3147 | Chess Problems: Introduction to an Art | 1963 |
| 3749 | FIDE Album (1959-1961) | 1966 |
| 133 | The Problemist Supplement | 2005 |
| 6167 | Viktor Chepizhny | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rxc2+
- 2.Qxc2#
- 1...Rc3
- 2.Qxe8#
- 1...Rc4
- 2.Qxe8#
- 1...Re5
- 2.Rxe5#
- 1...Rd8
- 2.Re5#
- 1...Rf8
- 2.Re5#
- 1...Rg8
- 2.Re5#
- 1...fxe3
- 2.Rg4#
- 1...Rxc2+
- Tries
- 1.Kd2?
- threat
- 2.Bd3#
- 1...Rxc2+
- 2.Qxc2#
- 1...Rc3
- 2.Qxe8#
- 1...fxe3+!
- threat
- 1.Sd3?
- threat
- 2.Sxf2#
- 1...Rxc2+
- 2.Sxc2#
- 1...Kxe3
- 2.Sc5#
- 1...fxe3
- 2.Sc6#
- 1...Re5
- 2.Rxe5#
- 1...Rc3
- 2.Qxe8#
- 1...h1S!
- threat
- 1.Sd5?
- threat
- 2.Sc6#
- 2.Sf6#
- 2.Bd3#
- 1...Rxc2+
- 2.Sxc2#
- 2.Qxc2#
- 1...fxe3
- 2.Sc6#
- 2.Bd3#
- 2.Rxe3#
- 1...Re5
- 2.Sf6#
- 2.Rxe5#
- 1...h1Q
- 2.Sc6#
- 2.Sf6#
- 1...h1R
- 2.Sc6#
- 2.Sf6#
- 1...Rc3
- 2.Qxe8#
- 1...Rc4
- 2.Sf6#
- 2.Bd3#
- 2.Qxe8#
- 1...Rc5
- 2.Sf6#
- 2.Bd3#
- 2.Qxe8#
- 1...Rc6
- 2.Sxc6#
- 2.Bd3#
- 1...Re6
- 2.Sc6#
- 2.Bd3#
- 1...Rf8
- 2.Sc6#
- 2.Bd3#
- 2.Re5#
- 1...Bc6
- 2.Sb5#
- 2.Sxc6#
- 2.Sf6#
- 2.Bd3#
- 1...b5
- 2.Sf6#
- 2.Bd3#
- 1...Bxd5!
- threat
- 1.Sbc6?
- threat
- 2.Se2#
- 2.Sb5#
- 2.Se6#
- 1...Rxc6
- 2.Sxc6#
- 1...Bxc6
- 2.Sb5#
- 2.Sxc6#
- 1...Re5
- 2.Rxe5#
- 1...Re6
- 2.Se2#
- 2.Sb5#
- 2.Sxe6#
- 1...Red8
- 2.Re5#
- 1...b5
- 2.Sxb5#
- 1...Rcd8!
- threat
- 1.Sb5?
- threat
- 2.Sc6#
- 2.Sd6#
- 1...Rxc2+
- 2.Sxc2#
- 2.Qxc2#
- 1...fxe3
- 2.Sc6#
- 1...Rc4
- 2.Sd6#
- 1...Rc5
- 2.Sd6#
- 1...Rc6
- 2.Sxc6#
- 1...Rcd8
- 2.Sd5#
- 1...Re5
- 2.Sd6#
- 2.Rxe5#
- 1...Re6
- 2.Sc6#
- 1...Red8
- 2.Re5#
- 1...Bd5
- 2.Sd6#
- 1...Bc6
- 2.Sa2#
- 2.Sd5#
- 2.Sa6#
- 2.Sxc6#
- 2.Sd6#
- 1...Rc3!
- threat
- 1.Sdc6?
- threat
- 2.Sa2#
- 2.Sd5#
- 2.Sa6#
- 1...Rxc6
- 2.Sxc6#
- 1...Bxc6
- 2.Sxc6#
- 1...Rcd8
- 2.Sd5#
- 1...Re5
- 2.Rxe5#
- 1...Red8
- 2.Sd5#
- 2.Re5#
- 1...b5!
- threat
- 1.Se6?
- threat
- 2.Sc6#
- 2.Re5#
- 1...Rxc2+
- 2.Sxc2#
- 2.Qxc2#
- 1...Rxe6
- 2.Sc6#
- 1...Rxh8
- 2.Sc6#
- 1...Rc3
- 2.Re5#
- 1...Rc4
- 2.Re5#
- 1...Rc6
- 2.Sxc6#
- 2.Re5#
- 1...Rcd8
- 2.Sd5#
- 2.Re5#
- 1...Red8
- 2.Re5#
- 1...Bd5
- 2.Re5#
- 1...Bc6
- 2.Sxc6#
- 2.Re5#
- 1...b5
- 2.Re5#
- 1...Rc5!
- threat
- 1.Qb3?
- threat
- 2.Qd3#
- 1...Rxc2+
- 2.Qxc2#
- 1...fxe3
- 2.Rg4#
- 2.Qxe3#
- 1...Rc3!
- threat
- 1.Qb5?
- threat
- 2.Qd3#
- 1...fxe3
- 2.Rg4#
- 1...Rc3
- 2.Qxe8#
- 1...Rc4
- 2.Qxe8#
- 1...Rxc2+!
- threat
- 1.Qxa8+?
- 1...Rc6
- 2.Qxc6#
- 1...Rxa8!
- 1...Rc6
- 1.c4?
- threat
- 2.Qc2#
- 1...fxe3
- 2.Rg4#
- 1...Rxc4+!
- threat
- 1.Kd2?
- Keys
- 1.Sb3!
- threat
- 2.Sd2#
- 1...Rxc2+
- 2.Sxc2#
- 1...Kxe3
- 2.Sc5#
- 1...fxe3
- 2.Sc6#
- 1...Rc3
- 2.Qxe8#
- 1...Rcd8
- 2.Sd5#
- 1...Red8
- 2.Re5#
- threat
- 1.Sb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(i);CHECK,OGATE,XP(C)::QAB(F),XR(i)
- R(i);N_GUARD::QAR(F),XR(j)
- R(j);N_GUARD::R1(I),XR(j)
- R(j);N_GUARD::R1(I)
- P(e);OGATEB,XP(E)::R(I)
- Tries
- Try
- K(A);N_SPINP(C),S_FLIGHT
- Threat
- B(B)
- Vars
- R(i);CHECK,OGATE,XP(C)::QAB(F),XR(i)
- R(i);N_GUARD::QAR(F),XR(j)
- Refutation
- P(e);CHECK,XP(E)
- Try
- S(G);
- Threat
- S(G),XP(a)
- Vars
- R(i);CHECK,XP(C)::QAR(F)+S(H),XR(i)
- K(d);P-FLIGHT,XP(E)::R(D)+S(G)
- P(e);SBLOCK,XP(E)::QAR(F)+S(H)
- R(j);N_GUARD::R1(I),XR(j)
- R(i);N_GUARD::QAR(F),XR(j)
- Refutation
- P(b);
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- R(i);N_GUARD::QAR(F),XR(j)
- Refutation
- B(h);XS(G)
- Try
- S(G);N_SPINP(C)
- Threat
- DUALS(3)
- Vars
- R(i);P_PINP(C),XS(G)::QAR(F)+S(H),XR(i)
- R(j);N_GUARD::R1(I),XR(j)
- R(j);N_GUARD::R1(I)
- P(f);::QAR(F)+S(H),XP(f)
- Refutation
- R(i);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- P(e);XP(E)::QAR(F)+S(G)
- R(i);::S(H)
- R(i);::QAR(F)+S(G),XR(i)
- R(i);N_GUARD,N_PINP(C)::QAR(F)+S(G)
- R(j);::QAR(F)+S(G)
- R(j);N_GUARD::R1(I)
- B(h);::S(H)
- Refutation
- R(i);
- Try
- S(H);N_SPINP(C)
- Threat
- DUALS(3)
- Vars
- R(i);P_PINP(C),XS(H)::QAR(F)+S(G),XR(i)
- B(h);XS(H)::QAR(F)+S(G),XB(h)
- R(i);::QAR(F)+S(G)
- R(j);N_GUARD::R1(I),XR(j)
- Refutation
- P(f);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(j);XS(H)::QAR(F)+S(G)
- R(j);XB(J)::QAR(F)+S(G)
- R(i);::R1(I)
- R(j);::R1(I)
- B(h);::R1(I)
- P(f);::R1(I)
- Refutation
- R(i);
- Try
- Q(F);
- Threat
- QAB1(F)
- Vars
- R(i);CHECK,OGATE,XP(C)::QAB(F),XR(i)
- Refutation
- R(i);
- Try
- Q(F);
- Threat
- QAB1(F)
- Vars
- P(e);OGATEB,XP(E)::R(I)
- R(i);N_GUARD::QAR(F),XR(j)
- Refutation
- R(i);CHECK,XP(C)
- Try
- Q(F);CHECK,XB(h)
- Vars
- R(i);N_GUARD,P_SPINR(i)::QAB(F),XR(i)
- Refutation
- R(i);N_PINP(C),XQ(F)
- Try
- P(C);
- Threat
- QAB(F)
- Vars
- P(e);OGATEB,XP(E)::R(I)
- Refutation
- R(i);CHECK,XP(C)
- Try
- Actual
- S(H);
- Threat
- S(H)
- Vars
- R(i);CHECK,XP(C)::QAR(F)+S(G),XR(i)
- K(d);P-FLIGHT,XP(E)::R(D)+S(H)
- P(e);SBLOCK,XP(E)::QAR(F)+S(G)
- R(i);N_GUARD::QAR(F),XR(j)
- R(i);N_GUARD,N_PINP(C)::QAR(F)+S(G)
- R(j);N_GUARD::R1(I)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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