MESON Chess Problem Database
Problem Display
PID: 99793 (4b3/3nKN2/2p1P3/3kp1Q1/1R4P1/3N2p1/8/7n w - - 0 1)
Sukhitashvili, Sergey Nikolaevich
Magyar Sakkszovetseg, 1979
#2
7 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sc5
- 2.Sf4#
- 2.Qxe5#
- 1...Sb6
- 2.Qxe5#
- 1...Sf6
- 2.Qxe5#
- 1...Sb8
- 2.Qxe5#
- 1...Sf8
- 2.Qxe5#
- 1...Sc5
- Tries
- 1.Sfxe5?
- threat
- 2.Sxd7#
- 1...Sxe5
- 2.Qxe5#
- 1...Sc5
- 2.Sf4#
- 2.Sf3#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Sb6
- 2.Sf3#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Sf6
- 2.Sf3#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Sb8
- 2.Sf3#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Sf8
- 2.Sf3#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...c5
- 2.Sf4#
- 1...Bg6!
- threat
- 1.Qc1?
- threat
- 2.Qc4#
- 1...Sb6
- 2.Qc5#
- 1...c5!
- threat
- 1.Qd2?
- threat
- 2.Qa2#
- 1...c5
- 2.Sdxe5#
- 1...Sc5
- 2.Sf4#
- 1...Sb6!
- threat
- 1.Qe3?
- threat
- 2.Qe4#
- 1...Sc5
- 2.Qxc5#
- 2.Qxe5#
- 1...Sf6
- 2.Qc5#
- 2.Qxe5#
- 1...e4
- 2.Sf4#
- 2.Rd4#
- 2.Qd4#
- 2.Qxe4#
- 1...Sf2!
- threat
- 1.Qf4?
- threat
- 2.Qc4#
- 2.Qe4#
- 1...c5
- 2.Qe4#
- 1...Sf2
- 2.Qc4#
- 1...Sc5
- 2.Qxe5#
- 2.Qc4#
- 1...Sb6
- 2.Qxe5#
- 2.Qe4#
- 1...Sf6
- 2.Qxe5#
- 2.Qc4#
- 1...e4
- 2.Qd6#
- 2.Qxe4#
- 1...exf4!
- threat
- 1.Qf5?
- threat
- 2.Qe4#
- 1...Sc5
- 2.Sf4#
- 2.Qxe5#
- 1...Sf6
- 2.Qxe5#
- 1...Sf2!
- threat
- 1.Sfxe5?
- Keys
- 1.Sdxe5!
- threat
- 2.Sxd7#
- 1...Kc5
- 2.Sd3#
- 1...Sxe5
- 2.Qxe5#
- 1...Sc5
- 2.Sd3#
- 2.Sf3#
- 2.Sg6#
- 2.Sd7#
- 1...Sb6
- 2.Sd3#
- 2.Sf3#
- 2.Sg6#
- 2.Sd7#
- 1...Sf6
- 2.Sd3#
- 2.Sf3#
- 2.Sg6#
- 2.Sd7#
- 1...Sb8
- 2.Sd3#
- 2.Sf3#
- 2.Sg6#
- 2.Sd7#
- 1...Sf8
- 2.Sd3#
- 2.Sf3#
- 2.Sg6#
- 2.Sd7#
- 1...c5
- 2.Qd2#
- threat
- 1.Sdxe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- S(f);N_GUARD::QAR1(D),XP(d)
- Tries
- Try
- S(G);XP(d)
- Threat
- QAR(D)+S(G),XS(f)
- Vars
- S(f);OGATE,P_SPINS(f),XS(G)::QAR1(D),XS(f)
- P(e);SBLOCK::S(A)
- Refutation
- B(g);
- Try
- Q(D);N_PINP(d)
- Threat
- QAB1(D)
- Vars
- S(f);N_GUARD::QAR1(D)
- Refutation
- P(e);
- Try
- Q(D);N_PINP(d)
- Threat
- QAB(D)
- Vars
- P(e);SBLOCK::QAR(D)+S(A),XP(d)
- S(f);SBLOCK::QAR(D)+S(A),DCHECK
- Refutation
- S(f);
- Try
- Q(D);N_PINP(d)
- Threat
- QAB1(D)
- Refutation
- S(a);
- Try
- Q(D);N_PINP(d)
- Threat
- DUALS(2)
- Vars
- P(e);::QAB1(D)
- S(a);::QAB1(D)
- Refutation
- P(d);XQ(D)
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- S(f);N_GUARD::QAR1(D),XP(d)
- Refutation
- S(a);
- Try
- Actual
- S(A);XP(d)
- Threat
- QAR(D)+S(A),XS(f)
- Vars
- K(c);P-FLIGHT::QAR(D)+S(A),DCHECK
- S(f);OGATE,P_SPINS(f),XS(A)::QAR1(D),XS(f)
- P(e);SBLOCK::QAR(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).