MESON Chess Problem Database
Problem Display
PID: 249460 (8/4rp1n/p1RpN1p1/1P1k4/4N1Q1/7n/bBBK2p1/8 w - - 0 1)
Klemanic, Emil
The Problemist, 1990
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Rc7
- 2.Sxc7#
- 1...Re8
- 2.Sc7#
- 1...Bb1
- 2.Bb3#
- 1...Bb3
- 2.Bxb3#
- 1...Bc4
- 2.Rxd6#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...S3g5
- 2.Sf4#
- 1...S7g5
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sf8
- 2.Sf6#
- 1...g5
- 2.Qf5#
- 1...Rc7
- Tries
- 1.S4c5?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Rxe6
- 2.Qd4#
- 1...axb5
- 2.Qe4#
- 1...dxc5
- 2.Qe4#
- 1...g1Q
- 2.Qe4#
- 1...g1B
- 2.Qe4#
- 1...S7g5
- 2.Qd4#
- 1...Sf2
- 2.Qd4#
- 1...S3g5
- 2.Qd4#
- 1...Sf6
- 2.Qd4#
- 1...f5
- 2.Qd4#
- 1...Sf4!
- threat
- 1.S4g5?
- threat
- 2.Be4#
- 2.Qf3#
- 2.Qxg2#
- 2.Qd4#
- 2.Qe4#
- 1...Rxe6
- 2.Qd4#
- 1...S3xg5
- 2.Sf4#
- 1...axb5
- 2.Be4#
- 2.Qf3#
- 2.Qxg2#
- 2.Qe4#
- 1...g1Q
- 2.Be4#
- 2.Qf3#
- 2.Qe4#
- 1...g1S
- 2.Be4#
- 2.Qd4#
- 2.Qe4#
- 1...g1B
- 2.Be4#
- 2.Qf3#
- 2.Qg2#
- 2.Qe4#
- 1...g1R
- 2.Be4#
- 2.Qf3#
- 2.Qd4#
- 2.Qe4#
- 1...Bb1
- 2.Bb3#
- 2.Qf3#
- 2.Qxg2#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Sg1
- 2.Sf4#
- 2.Be4#
- 2.Qd4#
- 2.Qe4#
- 1...Sf2
- 2.Sf4#
- 2.Qd4#
- 1...Sf4
- 2.Sxf4#
- 2.Be4#
- 2.Qf3#
- 1...Sf6
- 2.Qd4#
- 1...f5
- 2.Qf3#
- 2.Qxg2#
- 2.Qd4#
- 1...S7xg5!
- threat
- 1.Qxh3?
- threat
- 2.Sf4#
- 1...Rxe6
- 2.Qd3#
- 1...fxe6
- 2.Qd3#
- 1...g5
- 2.Qf5#
- 1...axb5!
- threat
- 1.Qxg2?
- threat
- 2.S4g5#
- 1...Kxe6
- 2.Sc5#
- 1...Rxe6
- 2.Sf6#
- 1...S7g5
- 2.S4xg5#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...S3g5
- 2.S4xg5#
- 2.Sf4#
- 1...g5
- 2.S4xg5#
- 1...Sf6!
- threat
- 1.Qf4?
- threat
- 2.Qxd6#
- 1...Kxe6
- 2.Rxd6#
- 1...Rxe6
- 2.Sc3#
- 1...Sxf4
- 2.Sxf4#
- 1...Rd7!
- threat
- 1.S4c5?
- Keys
- 1.Qe2!
- threat
- 2.Sc3#
- 2.Rxd6#
- 1...Kxe6
- 2.Sf6#
- 1...Rxe6
- 2.Qd3#
- 1...axb5
- 2.Rxd6#
- 1...fxe6
- 2.Rxd6#
- 2.Qd3#
- 1...Rd7
- 2.Sc3#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 13
- Sets
- R(h);N_GUARD::S(H),XR(h)
- R(h);N_GUARD::S(H)
- B(a);N_GUARD::B(B)
- B(a);N_GUARD::B(B),XB(a)
- B(a);SBLOCK::R1(G),XP(f)
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- S(j);N_GUARD::S(D)
- S(j);N_GUARD::S(D),XS(j)
- P(g);N_GUARD::QAR2(E)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(h);XS(H)::QAR1(E)
- P(e);XP(F)::QAB1(E)
- P(f);XS(D)::QAB1(E)
- P(b);::QAB1(E)
- S(j);::QAR1(E)
- S(c);::QAR1(E)
- P(i);::QAR1(E)
- Refutation
- S(c);
- Try
- S(D);
- Threat
- DUALS(5)
- Vars
- R(h);XS(H)::QAR1(E)
- S(c);N_GUARD,XS(D)::S(H)
- S(j);::QAR1(E)
- Refutation
- S(j);XS(D)
- Try
- Q(E);XS(c)
- Threat
- S(H)
- Vars
- R(h);SBLOCK,XS(H)::QAR2(E)
- P(i);SBLOCK,XS(H)::QAR2(E)
- P(g);N_GUARD::QAR2(E)
- Refutation
- P(e);XP(F)
- Try
- Q(E);XP(b)
- Threat
- QAB(E)+S(D)
- Vars
- K(d);P_SPINP(f),S_FLIGHT,XS(H)::S(D)
- R(h);SBLOCK,XS(H)::QAB(E)+S(D),DCHECK
- S(j);::QAB(E)+S(D),XS(j)
- S(c);N_GUARD::S(H)
- S(c);N_GUARD::S(H),XS(c)
- P(g);::QAB(E)+S(D),XP(g)
- Refutation
- S(j);
- Try
- Q(E);
- Threat
- QAR1(E),XP(f)
- Vars
- K(d);P_SPINP(f),S_FLIGHT,XS(H)::R1(G),XP(f)
- R(h);SBLOCK,XS(H)::S(D)
- S(c);XQ(E)::S(H),XS(c)
- Refutation
- R(h);
- Try
- Actual
- Q(E);
- Threat
- DUALS(2)
- Vars
- K(d);P_SPINP(f),S_FLIGHT,XS(H)::QAR(E)+S(D)
- R(h);SBLOCK,XS(H)::QAR2(E)
- P(e);XP(F)::R1(G),XP(f)
- R(h);::S(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).