MESON Chess Problem Database
Problem Display
PID: 263281 (B2R3K/6P1/2NrP3/2Pk1ppp/5q2/2Q2p2/2n2N2/2R5 w - - 0 1)
Viksna, Kristaps
2nd Comm., Szachy, 1972
#2
10 + 8
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Kxe6
- 2.g8Q#
- 2.g8B#
- 1...Qxc1
- 2.Rxd6#
- 1...Qd2
- 2.Rxd6#
- 1...Qe3
- 2.Rxd6#
- 1...Qe5
- 2.Sd4#
- 1...Qa4
- 2.Rxd6#
- 1...Qb4
- 2.Rxd6#
- 1...Qc4
- 2.Qe5#
- 1...Qd4
- 2.Rxd6#
- 1...Qe4
- 2.Rxd6#
- 1...Qg4
- 2.Rxd6#
- 1...Qh4
- 2.Rxd6#
- 1...Rxd8+
- 2.Sxd8#
- 1...Sd4
- 2.Qc4#
- 1...Kxe6
- Tries
- 1.Rd1+?
- 1...Kxe6
- 2.g8Q#
- 2.g8B#
- 1...Qd2
- 2.Rxd6#
- 1...Qd4
- 2.Rxd6#
- 1...Sd4!
- 1...Kxe6
- 1.g8Q?
- threat
- 2.Sb4#
- 2.Sa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.e7#
- 1...Qe5+
- 2.Sxe5#
- 1...Rxd8
- 2.Sb4#
- 2.Se7#
- 2.Sb8#
- 2.Sxd8#
- 1...Qc4
- 2.Qe5#
- 1...Qe3
- 2.Sb4#
- 2.Sa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Rxd6#
- 1...Qa4
- 2.Sb4#
- 2.Se7#
- 2.Rxd6#
- 2.e7#
- 1...Qb4
- 2.Sxb4#
- 2.Se7#
- 2.Rxd6#
- 2.e7#
- 1...Qe4
- 2.Sb4#
- 2.Sa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Rxd6#
- 1...Sb4
- 2.Sxb4#
- 2.Se7#
- 2.e7#
- 1...Sd4
- 2.Qc4#
- 1...Qd4+!
- threat
- 1.g8B?
- threat
- 2.Sb4#
- 2.Sa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.e7#
- 1...Qe5+
- 2.Sxe5#
- 1...Rxd8
- 2.Sb4#
- 2.Se7#
- 2.Sb8#
- 2.Sxd8#
- 1...Qc4
- 2.Qe5#
- 1...Qe3
- 2.Sb4#
- 2.Sa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Rxd6#
- 1...Qa4
- 2.Sb4#
- 2.Se7#
- 2.Rxd6#
- 2.e7#
- 1...Qb4
- 2.Sxb4#
- 2.Se7#
- 2.Rxd6#
- 2.e7#
- 1...Qe4
- 2.Sb4#
- 2.Sa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Rxd6#
- 1...Sb4
- 2.Sxb4#
- 2.Se7#
- 2.e7#
- 1...Sd4
- 2.Qc4#
- 1...Qd4+!
- threat
- 1.Rd1+?
- Keys
- 1.e7!
- threat
- 2.g8Q#
- 2.g8B#
- 1...Rxd8+
- 2.Sxd8#
- 1...Ke6
- 2.g8Q#
- 2.g8B#
- 1...Qxc1
- 2.Rxd6#
- 2.g8Q#
- 2.g8B#
- 1...Qc4
- 2.Qe5#
- 1...Qh2
- 2.g8Q#
- 2.g8B#
- 1...Qd2
- 2.Rxd6#
- 2.g8Q#
- 2.g8B#
- 1...Qe3
- 2.Rxd6#
- 1...Qg3
- 2.g8Q#
- 2.g8B#
- 1...Qe5
- 2.Sd4#
- 1...Qa4
- 2.Rxd6#
- 2.g8Q#
- 2.g8B#
- 1...Qb4
- 2.Rxd6#
- 2.g8Q#
- 2.g8B#
- 1...Qd4
- 2.Rxd6#
- 1...Qe4
- 2.Rxd6#
- 1...Qg4
- 2.Rxd6#
- 2.g8Q#
- 2.g8B#
- 1...Qh4
- 2.Rxd6#
- 2.g8Q#
- 2.g8B#
- 1...Rd7
- 2.g8Q#
- 2.g8B#
- 1...Sa1
- 2.g8Q#
- 2.g8B#
- 1...Se1
- 2.g8Q#
- 2.g8B#
- 1...Sa3
- 2.g8Q#
- 2.g8B#
- 1...Se3
- 2.g8Q#
- 2.g8B#
- 1...Sb4
- 2.g8Q#
- 2.g8B#
- 1...Sd4
- 2.Qc4#
- 1...g4
- 2.g8Q#
- 2.g8B#
- 1...h4
- 2.g8Q#
- 2.g8B#
- threat
- 1.e7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- K(d);N_SPINR(h),S_FLIGHT,XP(F)::P=Q
- Q(c);N_GUARD,XR(A)::R1(I),XR(h)
- Q(c);N_GUARD::R1(I),XR(h)
- Q(c);P_PINP(G),SBLOCK::B(H)+S(E)
- Q(c);N_GUARD,SBLOCK::QAR1(C)
- Q(c);N_GUARD,P_PINP(G)::R1(I),XR(h)
- R(h);CHECK,N_SPINR(h),XR(I)::B(H)+S(E),XR(h)
- S(a);S_CUTQ(c)::QAB1(C)
- Tries
- Try
- R(A);CHECK
- Vars
- K(d);N_SPINR(h),S_CUTQ(c),S_CUTQ(c),S_CUTS(a),S_FLIGHT,XP(F)::P=Q
- Q(c);P_SPINQ(c)::R1(I),XR(h)
- Q(c);P_PINP(G),P_SPINQ(c)::R1(I),XR(h)
- Refutation
- S(a);P_SPINS(a)
- Try
- P(G);
- Threat
- DUALS(7)
- Vars
- Q(c);CHECK::B(H)+S(E),XQ(c)
- Q(c);N_GUARD,SBLOCK::QAR1(C)
- S(a);S_CUTQ(c)::QAB1(C)
- Refutation
- Q(c);CHECK
- Try
- P(G);
- Threat
- DUALS(7)
- Vars
- Q(c);CHECK::B(H)+S(E),XQ(c)
- Q(c);N_GUARD,SBLOCK::QAR1(C)
- S(a);S_CUTQ(c)::QAB1(C)
- Refutation
- Q(c);CHECK
- Try
- Actual
- P(F);
- Threat
- P=Q
- Vars
- R(h);CHECK,N_SPINR(h),XR(I)::B(H)+S(E),XR(h)
- K(d);N_SPINR(h),S_FLIGHT::P=Q
- Q(c);N_GUARD,SBLOCK::QAR1(C)
- Q(c);::P=Q
- Q(c);N_GUARD::R1(I),XR(h)
- Q(c);P_PINP(G),SBLOCK::B(H)+S(E)
- Q(c);N_GUARD,P_PINP(G)::R1(I),XR(h)
- R(h);::P=Q
- S(a);::P=Q
- S(a);S_CUTQ(c)::QAB1(C)
- P(f);::P=Q
- P(g);::P=Q
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).