MESON Chess Problem Database
Problem Display
PID: 99072 (r6Q/2P3RN/1pK2R2/3p1P2/2Pk1p2/3P4/1N1PPp1r/B5q1 w - - 0 1)
Buglos, Janos
Magyar Sakkelet, 1992
#2
13 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qg2
- 2.Sa4#
- 1...Qg3
- 2.Sa4#
- 1...Qg4
- 2.Sa4#
- 1...Qg5
- 2.Sa4#
- 1...Qg6
- 2.Sa4#
- 1...Qxg7
- 2.Sa4#
- 1...Rb8
- 2.Sd1#
- 1...Rc8
- 2.Sd1#
- 1...Rd8
- 2.Sd1#
- 1...Re8
- 2.Sd1#
- 1...Rf8
- 2.Sd1#
- 1...Rg8
- 2.Sd1#
- 1...Rxh8
- 2.Sd1#
- 1...f1S
- 2.Sa4#
- 1...f1B
- 2.Sa4#
- 1...Qg2
- Tries
- 1.Rd6?
- threat
- 2.Rxd5#
- 1...Ke5
- 2.Rxd5#
- 1...Qh1
- 2.Rg8#
- 1...Qg2
- 2.Sa4#
- 1...Qg6
- 2.Sa4#
- 1...Ra5
- 2.Rxg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rgg6#
- 1...Rd8
- 2.Sd1#
- 1...Rh6!
- threat
- 1.Rf8?
- threat
- 2.Rxg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 1...Qg6+
- 2.Rxg6#
- 1...Rh6+
- 2.Rg6#
- 1...Ke5
- 2.Rxg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 2.Re7#
- 1...Qxa1
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rd7#
- 2.Re7#
- 2.Rgf7#
- 2.Rgg8#
- 1...Qxg7
- 2.Sa4#
- 2.Qxg7#
- 1...Rxf8
- 2.Sd1#
- 1...Qb1
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rd7#
- 2.Re7#
- 2.Rgf7#
- 2.Rgg8#
- 1...Qc1
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rd7#
- 2.Re7#
- 2.Rgf7#
- 2.Rgg8#
- 1...Qd1
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rd7#
- 2.Re7#
- 2.Rgf7#
- 2.Rgg8#
- 1...Qe1
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rd7#
- 2.Re7#
- 2.Rgf7#
- 2.Rgg8#
- 1...Qf1
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rd7#
- 2.Re7#
- 2.Rgf7#
- 2.Rgg8#
- 1...Qh1
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rd7#
- 2.Re7#
- 2.Rgf7#
- 2.Rgg8#
- 1...Qg2
- 2.Sa4#
- 2.Rxg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 1...Qg3
- 2.Sa4#
- 2.Rxg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 1...Qg4
- 2.Sa4#
- 2.Rxg4#
- 2.Rg5#
- 2.Rg6#
- 1...Qg5
- 2.Sa4#
- 2.Rxg5#
- 1...Rg2
- 2.Rxg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rg6#
- 1...Re8
- 2.Sd1#
- 1...Rxh7!
- threat
- 1.Rgg6?
- threat
- 2.Rf8#
- 1...Ke5
- 2.Rf8#
- 1...Qxg6
- 2.Sa4#
- 1...Rxh8
- 2.Sd1#
- 1...Qg5
- 2.Sa4#
- 1...Re8
- 2.Sd1#
- 1...Rf8
- 2.Sd1#
- 2.Rxf8#
- 1...Rg8
- 2.Sd1#
- 1...Rxh7!
- threat
- 1.e3+?
- 1...Ke5
- 2.Re7#
- 1...fxe3!
- 1...Ke5
- 1.Rd6?
- Keys
- 1.Rd7!
- threat
- 2.Rxd5#
- 1...Ke5
- 2.Rxd5#
- 1...Qh1
- 2.Rf8#
- 1...Qg2
- 2.Sa4#
- 1...Qg8
- 2.Sa4#
- 1...Ra5
- 2.Rg6#
- 1...Rd8
- 2.Sd1#
- threat
- 1.Rd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 13
- Sets
- Q(a);N_GUARD::B(A)+S(B)
- Q(a);N_GUARD,P_PINR(I)::B(A)+S(B)
- Q(a);N_GUARD,XR(K)::B(A)+S(B)
- R(h);N_GUARD::B(A)+S(B)
- R(h);N_GUARD,P_PINP(J)::B(A)+S(B)
- R(h);N_GUARD,XQ(M)::B(A)+S(B)
- P(b);S_CUTQ(a)::B(A)+S(B)
- Tries
- Try
- R(I);P_PINP(f)
- Threat
- R1(I),XP(f)
- Vars
- K(d);N_SPINP(f),S_FLIGHT::R1(I),XP(f)
- Q(a);N_GUARD::QAB(M)+R(K)
- Q(a);N_GUARD::B(A)+S(B)
- Q(a);N_GUARD,P_PINR(I)::B(A)+S(B)
- R(h);N_GUARD::B(A)+S(B)
- Refutation
- R(c);P_PINR(I)
- Try
- R(I);
- Threat
- DUALS(6)
- Vars
- Q(a);CHECK::QAB(M)+R(K),XQ(a)
- R(c);CHECK::QAB(M)+R(K)
- R(h);N_GUARD,XR(I)::B(A)+S(B)
- R(h);N_GUARD::B(A)+S(B)
- Refutation
- R(c);XS(L)
- Try
- R(K);
- Threat
- QAB(M)+R(I)
- Vars
- K(d);S_FLIGHT::QAB(M)+R(I)
- Q(a);N_GUARD,P_PINR(I),XR(K)::B(A)+S(B)
- R(h);N_GUARD,XQ(M)::B(A)+S(B)
- Q(a);N_GUARD::B(A)+S(B)
- R(h);N_GUARD::B(A)+S(B)
- Refutation
- R(c);XS(L)
- Try
- P(D);CHECK
- Vars
- K(d);S_FLIGHT::R(K)
- Refutation
- P(e);XP(D)
- Try
- Actual
- R(K);P_PINP(f)
- Threat
- R1(K),XP(f)
- Vars
- K(d);N_SPINP(f),S_FLIGHT::R1(K),XP(f)
- Q(a);N_GUARD::QAB(M)+R(I)
- Q(a);N_GUARD::B(A)+S(B)
- R(h);N_GUARD::QAB(M)+R(I)
- R(h);N_GUARD::B(A)+S(B)
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).