MESON Chess Problem Database
Problem Display
PID: 177931 (2nq3r/1Q1p3N/2P1p2N/3Rp1P1/p1BBk3/6K1/1pP5/8 w - - 0 1)
Slesarenko, Anatoly Vasilevich
Sahs (Latvia), 1988
#2
10 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Sf6#
- 1...Qxg5+
- 2.Sxg5#
- 1...Qb6
- 2.Sf6#
- 1...Qf6
- 2.Sxf6#
- 1...Qc7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qg8
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Qa5
- Tries
- 1.Qxb2?
- threat
- 2.Rxe5#
- 1...Qxg5+
- 2.Sxg5#
- 1...exd4
- 2.Qxd4#
- 1...exd5
- 2.Bd3#
- 1...Qa5
- 2.Sf6#
- 1...Qf6
- 2.Sxf6#
- 1...Qc7
- 2.Sf6#
- 1...d6!
- threat
- 1.Qb3?
- threat
- 2.Bd3#
- 2.Qd3#
- 2.Qe3#
- 2.Qf3#
- 1...Qxg5+
- 2.Sxg5#
- 1...exd4
- 2.Qd3#
- 2.Qf3#
- 1...exd5
- 2.Qd3#
- 2.Qe3#
- 1...Qf6
- 2.Sxf6#
- 2.Bd3#
- 2.Qd3#
- 2.Qe3#
- 1...Qf8
- 2.Bd3#
- 2.Qd3#
- 2.Qe3#
- 1...Rf8
- 2.Bd3#
- 2.Qd3#
- 2.Qe3#
- 1...axb3!
- threat
- 1.Qxd7?
- threat
- 2.Bd3#
- 2.Rxe5#
- 1...Qxg5+
- 2.Sxg5#
- 1...Qxd7
- 2.Sf6#
- 1...exd4
- 2.Qxe6#
- 1...exd5
- 2.Qg4#
- 1...Qa5
- 2.Sf6#
- 2.Bd3#
- 1...Qf6
- 2.Sxf6#
- 2.Bd3#
- 1...Qc7
- 2.Sf6#
- 2.Bd3#
- 1...Sd6!
- threat
- 1.cxd7?
- threat
- 2.Bd3#
- 2.Rd6#
- 1...Qxg5+
- 2.Sxg5#
- 1...Qxd7
- 2.Sf6#
- 2.Bd3#
- 2.Rxd7#
- 1...exd5
- 2.Qxd5#
- 1...b1Q
- 2.Bd3#
- 1...b1R
- 2.Bd3#
- 1...Qa5
- 2.Sf6#
- 2.Bd3#
- 1...Qb6
- 2.Sf6#
- 2.Bd3#
- 1...Qc7
- 2.Sf6#
- 2.Bd3#
- 1...Sb6
- 2.Bd3#
- 1...Sd6
- 2.Bd3#
- 2.Rxd6#
- 1...Sa7
- 2.Bd3#
- 1...Se7
- 2.Sf6#
- 2.Bd3#
- 1...exd4!
- threat
- 1.c7?
- threat
- 2.Bd3#
- 2.Rd6#
- 2.Rxd7#
- 1...Qxg5+
- 2.Sxg5#
- 1...Qxc7
- 2.Sf6#
- 2.Bd3#
- 1...exd5
- 2.Qxd5#
- 1...b1Q
- 2.Bd3#
- 1...b1R
- 2.Bd3#
- 1...d6
- 2.Bd3#
- 2.Rxd6#
- 1...Sb6
- 2.Bd3#
- 1...Sd6
- 2.Bd3#
- 2.Rxd6#
- 1...Sa7
- 2.Bd3#
- 1...Se7
- 2.Sf6#
- 2.Bd3#
- 1...exd4!
- threat
- 1.Qxb2?
- Keys
- 1.Qb5!
- threat
- 2.Bd3#
- 1...Qxg5+
- 2.Sxg5#
- 1...exd4
- 2.Re5#
- 1...exd5
- 2.Qxd5#
- threat
- 1.Qb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- Q(h);N_GUARD::S(J)
- Q(h);CHECK,XP(F)::S(J),XQ(h)
- Q(h);N_GUARD::S(J),XQ(h)
- Q(h);N_GUARD,P_PINP(F)::S(J)
- S(g);S_CUTQ(h)::S(J)
- Tries
- Try
- Q(I);XP(a)
- Threat
- R1(E),XP(d)
- Vars
- Q(h);CHECK,XP(F)::S(J),XQ(h)
- P(d);OGATE,XB(D)::QAR1(I),XP(d)
- P(e);SBLOCK,XR(E)::B(C)
- Q(h);N_GUARD::S(J)
- Q(h);N_GUARD::S(J),XQ(h)
- Refutation
- P(f);
- Try
- Q(I);
- Threat
- DUALS(4)
- Vars
- Q(h);CHECK,XP(F)::S(J),XQ(h)
- Refutation
- P(b);XQ(I)
- Try
- Q(I);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,XP(F)::S(J),XQ(h)
- Q(h);N_GUARD,XQ(I)::S(J)
- P(d);OGATEB,XB(D)::QAR2(I),XP(e)
- P(e);OGATE,XR(E)::QAR2(I)
- Refutation
- S(g);
- Try
- P(G);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(h);CHECK,XP(F)::S(J),XQ(h)
- P(e);OGATE,P_SPINP(e),XR(E)::QAB1(I),XP(e)
- P(a);::B(C)
- S(g);::B(C)
- Refutation
- P(d);XB(D)
- Try
- P(G);
- Threat
- DUALS(3)
- Vars
- Q(h);CHECK,XP(F)::S(J),XQ(h)
- P(e);OGATE,P_SPINP(e),XR(E)::QAB1(I),XP(e)
- P(a);::B(C)
- S(g);::B(C)
- Refutation
- P(d);XB(D)
- Try
- Actual
- Q(I);
- Threat
- B(C)
- Vars
- Q(h);CHECK,XP(F)::S(J),XQ(h)
- P(d);SBLOCK,XB(D)::R1(E)
- P(e);OGATE,XR(E)::QAB1(I),XP(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).