MESON Chess Problem Database
Problem Display
PID: 169287 (n2R1r2/3n4/b5p1/4N1p1/p1P2kP1/1QB3NB/2P2P2/2K5 w - - 0 1)
Egorov, Gennady Sergeevich
Zhuravlev, Andrey Nikolaevich
4th Prize, SuperProblem 189. TT, 2017
#2
11 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Bxc4
- 2.Qxc4#
- 1...Sc5
- 2.Rxf8#
- 1...Sxe5
- 2.Bd2#
- 1...Sdb6
- 2.Rxf8#
- 1...Sb8
- 2.Rxf8#
- 1...Bxc4
- Tries
- 1.Sxd7?
- threat
- 2.Bd2#
- 2.Be5#
- 2.Rxf8#
- 1...Kf3
- 2.Rxf8#
- 1...Rxd8
- 2.Bd2#
- 2.Be5#
- 1...Bxc4
- 2.Bd2#
- 2.Be5#
- 1...axb3
- 2.Rxf8#
- 1...Rf5
- 2.Bd2#
- 1...Rf6
- 2.Bd2#
- 2.Be5#
- 1...Rf7
- 2.Bd2#
- 2.Be5#
- 1...Rg8
- 2.Bd2#
- 2.Be5#
- 1...Rh8
- 2.Bd2#
- 2.Be5#
- 1...Re8!
- threat
- 1.Ba1?
- threat
- 2.Sxg6#
- 2.Qe3#
- 2.Qf3#
- 1...Sxe5
- 2.Rd4#
- 2.Qe3#
- 1...Rf6
- 2.Qe3#
- 2.Qf3#
- 1...Rg8
- 2.Qe3#
- 2.Qf3#
- 1...Bb7
- 2.Sxg6#
- 2.Qe3#
- 1...axb3!
- threat
- 1.Bb2?
- threat
- 2.Sxg6#
- 2.Qe3#
- 2.Qf3#
- 1...Sxe5
- 2.Rd4#
- 2.Qe3#
- 1...Rf6
- 2.Qe3#
- 2.Qf3#
- 1...Rg8
- 2.Qe3#
- 2.Qf3#
- 1...Bb7
- 2.Sxg6#
- 2.Qe3#
- 1...axb3!
- threat
- 1.Bd4?
- threat
- 2.Sxg6#
- 2.Qe3#
- 2.Qf3#
- 1...Sxe5
- 2.Qe3#
- 1...Rf6
- 2.Qe3#
- 2.Qf3#
- 1...Rg8
- 2.Qe3#
- 2.Qf3#
- 1...Bb7
- 2.Sxg6#
- 2.Qe3#
- 1...axb3!
- threat
- 1.Rxf8+?
- 1...Sf6
- 2.Rxf6#
- 1...Sxf8!
- 1...Sf6
- 1.Qb6?
- threat
- 2.Qe3#
- 2.Qd4#
- 1...Sxe5
- 2.Qe3#
- 1...Sdxb6
- 2.Rxf8#
- 1...Bb7
- 2.Qe3#
- 1...Sc5
- 2.Rxf8#
- 1...Sf6
- 2.Qe3#
- 1...Saxb6!
- threat
- 1.Qb7?
- threat
- 2.Se2#
- 2.Sd3#
- 2.Sxg6#
- 2.Qf3#
- 2.Qe4#
- 1...Bxc4
- 2.Sxg6#
- 2.Qf3#
- 2.Qe4#
- 1...Sxe5
- 2.Se2#
- 2.Bd2#
- 2.Rd4#
- 2.Qe4#
- 1...Rf6
- 2.Se2#
- 2.Sd3#
- 2.Qf3#
- 2.Qe4#
- 1...Rg8
- 2.Se2#
- 2.Sd3#
- 2.Qf3#
- 2.Qe4#
- 1...Sc5
- 2.Se2#
- 2.Sxg6#
- 2.Rxf8#
- 2.Qf3#
- 1...Sf6
- 2.Se2#
- 2.Sd3#
- 2.Sxg6#
- 2.Qf3#
- 1...Bxb7!
- threat
- 1.Qb8?
- threat
- 2.Bd2#
- 1...Sxe5
- 2.Rxf8#
- 1...Sxb8
- 2.Rxf8#
- 1...Sc7!
- threat
- 1.Sxd7?
- Keys
- 1.Bg2!
- threat
- 2.Se2#
- 1...Bxc4
- 2.Qxc4#
- 1...Sxe5
- 2.Rd4#
- threat
- 1.Bg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- B(d);OGATE,XP(H)::QAR(D),XB(d)
- S(f);N_GUARD::R(K),XR(h)
- S(f);SBLOCK,XS(J)::B(E)
- Tries
- Try
- S(J);XS(f)
- Threat
- DUALS(3)
- Vars
- K(b);P-FLIGHT::R(K),XR(h)
- P(a);XQ(D)::R(K),XR(h)
- R(h);::B(E)
- Refutation
- R(h);
- Try
- B(E);
- Threat
- DUALS(3)
- Refutation
- P(a);XQ(D)
- Try
- B(E);
- Threat
- DUALS(3)
- Refutation
- P(a);XQ(D)
- Try
- B(E);
- Threat
- DUALS(3)
- Vars
- S(f);XS(J)::QAB1(D)
- Refutation
- P(a);XQ(D)
- Try
- R(K);CHECK,XR(h)
- Vars
- S(f);N_GUARD,P_SPINS(f)::R(K),XS(f)
- Refutation
- S(f);XR(K)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(f);XS(J)::QAB1(D)
- S(f);N_GUARD,XQ(D)::R(K),XR(h)
- B(d);::QAB1(D)
- S(f);N_GUARD::R(K),XR(h)
- S(f);::QAB1(D)
- Refutation
- S(g);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(5)
- Refutation
- B(d);XQ(D)
- Try
- Q(D);
- Threat
- B(E)
- Vars
- S(f);N_GUARD,P_SPINS(f),XS(J)::R(K),XR(h)
- S(f);N_GUARD,XQ(D)::R(K),XR(h)
- Refutation
- S(g);
- Try
- Actual
- B(G);
- Threat
- S(F)
- Vars
- B(d);OGATE,XP(H)::QAR(D),XB(d)
- S(f);OGATE,SBLOCK,XS(J)::R(K)
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).