MESON Chess Problem Database
Problem Display
PID: 42661 (b3Q2n/K4p2/5B2/2pk1Np1/p3N2r/bP6/2R2r2/3n4 w - - 0 1)
Udartsev, Valentin Filipovich
2nd Prize, Kozlov-80 JT (64), 1979
#2
7 + 11
| 3750 | FIDE Album (1977-1979) | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Rd2#
- 1...Rd2
- 2.Rxd2#
- 1...Rff4
- 2.Rd2#
- 1...Rxf5
- 2.Rd2#
- 1...Rxe4
- 2.Qd7#
- 1...Bc1
- 2.Rxc5#
- 1...Bb2
- 2.Rxc5#
- 1...Bc6
- 2.Qe5#
- 1...Sb2
- 2.Sc3#
- 2.Se3#
- 1...Sc3
- 2.Sxc3#
- 2.Se3#
- 1...Se3
- 2.Sc3#
- 2.Sxe3#
- 1...c4
- 2.bxc4#
- 1...Rf1
- Tries
- 1.Kb6?
- threat
- 2.Qe5#
- 1...Rxf5
- 2.Rd2#
- 1...Rxe4
- 2.Qd7#
- 1...Bb2
- 2.Rxc5#
- 1...Sg6!
- threat
- 1.Seg3?
- threat
- 2.Qd7#
- 1...Bc6
- 2.Qe5#
- 1...c4!
- threat
- 1.Sxg5?
- threat
- 2.Qd7#
- 2.Qxa8#
- 1...Rxf5
- 2.Qd7#
- 1...Rb4
- 2.Qd7#
- 1...Bc6
- 2.Qe5#
- 1...Bb7
- 2.Qd7#
- 1...c4!
- threat
- 1.Sd4?
- threat
- 2.Qe5#
- 2.Qxa8#
- 1...Rxe4
- 2.Qd7#
- 2.Qd8#
- 1...cxd4
- 2.Qe5#
- 1...Rf5
- 2.Qxa8#
- 1...Bc6
- 2.Qxc6#
- 2.Qe5#
- 1...Bb7
- 2.Qe5#
- 1...Sg6
- 2.Qxa8#
- 1...Rxf6!
- threat
- 1.Se7+?
- 1...Ke6
- 2.Qc8#
- 1...Kxe4!
- 1...Ke6
- 1.Sg7?
- threat
- 2.Qxa8#
- 1...Rxf6
- 2.Rd2#
- 1...Rxe4
- 2.Qd7#
- 1...Bc6
- 2.Qe5#
- 1...Bb7!
- threat
- 1.Ba1?
- threat
- 2.Sf6#
- 1...Rxf5
- 2.Rd2#
- 1...Rxe4
- 2.Qd7#
- 1...Bb2
- 2.Rxc5#
- 1...c4
- 2.bxc4#
- 1...f6
- 2.Sxf6#
- 1...Rh6!
- threat
- 1.Bb2?
- threat
- 2.Sf6#
- 1...Rxf5
- 2.Rd2#
- 1...Rxe4
- 2.Qd7#
- 1...Bxb2
- 2.Rxc5#
- 1...c4
- 2.bxc4#
- 1...f6
- 2.Sxf6#
- 1...Rh6!
- threat
- 1.Bg7?
- threat
- 2.Sf6#
- 1...Rxf5
- 2.Rd2#
- 1...Rxe4
- 2.Qd7#
- 1...Bb2
- 2.Rxc5#
- 1...c4
- 2.bxc4#
- 1...f6
- 2.Sxf6#
- 1...Rh6!
- threat
- 1.Bxh8?
- threat
- 2.Sf6#
- 1...Rxf5
- 2.Rd2#
- 1...Rxe4
- 2.Qd7#
- 1...Bb2
- 2.Rxc5#
- 1...c4
- 2.bxc4#
- 1...f6
- 2.Sxf6#
- 1...Rh6!
- threat
- 1.Rc4?
- threat
- 2.Qd7#
- 1...Bc6
- 2.Qe5#
- 1...axb3!
- threat
- 1.Qd8+?
- 1...Kc6
- 2.Sd4#
- 1...Ke6
- 2.Sg7#
- 1...Kxe4!
- 1...Kc6
- 1.Kb6?
- Keys
- 1.Sfg3!
- threat
- 2.Qd7#
- 1...Rxf6
- 2.Rd2#
- 1...Bc6
- 2.Qe5#
- 1...c4
- 2.bxc4#
- threat
- 1.Sfg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(b);N_GUARD::R(A)
- R(b);N_GUARD::R(A),XR(b)
- R(b);N_GUARD,XS(D)::R(A)
- R(e);SBLOCK,XS(C)::QAR2(G)
- B(c);N_GUARD::R1(A),XP(f)
- B(j);SBLOCK::QAR1(G)
- P(f);OGATE::P(B),XP(f)
- Tries
- Try
- K(F);S_FLIGHT
- Threat
- QAR1(G)
- Vars
- R(b);N_GUARD,XS(D)::R(A)
- R(e);SBLOCK,XS(C)::QAR2(G)
- B(c);N_GUARD::R1(A),XP(f)
- Refutation
- S(k);
- Try
- S(C);
- Threat
- QAR2(G)
- Vars
- B(j);SBLOCK::QAR1(G)
- Refutation
- P(f);
- Try
- S(C);XP(h)
- Threat
- DUALS(2)
- Vars
- R(b);XS(D)::QAR2(G)
- R(e);::QAR2(G)
- B(j);SBLOCK::QAR1(G)
- B(j);::QAR2(G)
- Refutation
- P(f);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(f);XS(D)::QAR1(G)
- R(b);::QAB(G),XB(j)
- B(j);::QAR1(G)
- S(k);::QAB(G),XB(j)
- Refutation
- R(b);XB(E)
- Try
- S(D);CHECK
- Vars
- K(g);S_FLIGHT::QAB(G)
- Refutation
- K(g);S_FLIGHT,XS(C)
- Try
- S(D);
- Threat
- QAB(G),XB(j)
- Vars
- R(b);N_GUARD,XB(E)::R(A)
- R(e);SBLOCK,XS(C)::QAR2(G)
- B(j);SBLOCK::QAR1(G)
- Refutation
- B(j);
- Try
- B(E);
- Threat
- S(C)
- Vars
- R(b);N_GUARD,XS(D)::R(A)
- R(e);SBLOCK,XS(C)::QAR2(G)
- B(c);N_GUARD::R1(A),XP(f)
- P(f);OGATE::P(B),XP(f)
- P(i);::S(C),XP(i)
- Refutation
- R(e);
- Try
- B(E);
- Threat
- S(C)
- Vars
- R(b);N_GUARD,XS(D)::R(A)
- R(e);SBLOCK,XS(C)::QAR2(G)
- B(c);N_GUARD,XB(E)::R1(A),XP(f)
- P(f);OGATE::P(B),XP(f)
- P(i);::S(C),XP(i)
- Refutation
- R(e);
- Try
- B(E);
- Threat
- S(C)
- Vars
- R(b);N_GUARD,XS(D)::R(A)
- R(e);SBLOCK,XS(C)::QAR2(G)
- B(c);N_GUARD::R1(A),XP(f)
- P(f);OGATE::P(B),XP(f)
- P(i);::S(C),XP(i)
- Refutation
- R(e);
- Try
- B(E);XS(k)
- Threat
- S(C)
- Vars
- R(b);N_GUARD,XS(D)::R(A)
- R(e);SBLOCK,XS(C)::QAR2(G)
- B(c);N_GUARD::R1(A),XP(f)
- P(f);OGATE::P(B),XP(f)
- P(i);::S(C),XP(i)
- Refutation
- R(e);
- Try
- R(A);
- Threat
- QAR2(G)
- Vars
- B(j);SBLOCK::QAR1(G)
- Refutation
- P(d);XP(B)
- Try
- Q(G);CHECK
- Vars
- K(g);P_SPINP(f),S_FLIGHT::S(D)
- K(g);S_FLIGHT::S(D)
- Refutation
- K(g);S_FLIGHT,XS(C)
- Try
- Actual
- S(D);
- Threat
- QAR2(G)
- Vars
- R(b);N_GUARD,XB(E)::R(A)
- B(j);SBLOCK::QAR1(G)
- P(f);OGATE::P(B),XP(f)
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).