MESON Chess Problem Database
Problem Display
PID: 173690 (q6b/2PpP1P1/3pP3/2r1k1P1/3R2B1/5RP1/1Q3B2/2n3NK w - - 0 1)
Boros, Sandor
Fleck, Ferenc
Il Problema, 1932
#2
13 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxf3+
- 2.Sxf3#
- 1...Qe4
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qd5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qc6
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qb7
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa1
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa2
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa3
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa4
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa5
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa6
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa7
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qb8
- 2.Re3#
- 1...Qc8
- 2.Re3#
- 1...Qd8
- 2.Re3#
- 1...Qe8
- 2.Re3#
- 1...Qf8
- 2.Re3#
- 1...Qg8
- 2.Re3#
- 1...Rd5
- 2.Re3#
- 1...Rc6
- 2.Re3#
- 1...Qxf3+
- Tries
- 1.Rd1+?
- 1...Ke4
- 2.Re3#
- 2.Rf4#
- 2.Qd4#
- 1...Rc3!
- 1...Ke4
- 1.Rd2+?
- 1...Ke4
- 2.Re3#
- 2.Rf4#
- 2.Qd4#
- 1...Rc3!
- 1...Ke4
- 1.Rd3+?
- 1...Ke4
- 2.Rfe3#
- 2.Qd4#
- 1...Rc3!
- 1...Ke4
- 1.Re4+?
- 1...Kxe4
- 2.Qd4#
- 1...Kd5!
- 1...Kxe4
- 1.Rd5+?
- 1...Ke4
- 2.Qd4#
- 1...Kxd5!
- 1...Ke4
- 1.Qxc1?
- threat
- 2.Qf4#
- 1...Qxf3+
- 2.Sxf3#
- 1...Qe4
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qf8
- 2.Qe3#
- 2.Qe1#
- 1...Rxc1!
- threat
- 1.Qe2+?
- 1...Qe4
- 2.Qxe4#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Sxe2!
- 1...Qe4
- 1.e8S?
- threat
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qxf3+
- 2.Sxf3#
- 1...Qxe8
- 2.Re3#
- 1...Rxc7
- 2.gxh8Q#
- 2.gxh8B#
- 1...dxe6
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rc3
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qe4
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qd5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qc6
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qb7
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa1
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa2
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa3
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa4
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa5
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa6
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa7
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qb8
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qc8
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qd8
- 2.Re3#
- 1...Rc2
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rc4
- 2.gxh8Q#
- 2.gxh8B#
- 1...Ra5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rb5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rd5
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rc6
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Sa2
- 2.gxh8Q#
- 2.gxh8B#
- 1...Se2
- 2.gxh8Q#
- 2.gxh8B#
- 1...Sb3
- 2.gxh8Q#
- 2.gxh8B#
- 1...Sd3
- 2.gxh8Q#
- 2.gxh8B#
- 1...d5
- 2.Re3#
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxg7!
- threat
- 1.gxh8S?
- threat
- 2.Sg6#
- 2.Sf7#
- 1...Qxf3+
- 2.Sxf3#
- 1...d5
- 2.Sf7#
- 1...Qe4
- 2.Sf7#
- 1...Qe8
- 2.Re3#
- 1...Qf8
- 2.Sg6#
- 2.Re3#
- 1...Qg8
- 2.Re3#
- 1...Qxh8+!
- threat
- 1.Rd1+?
- Keys
- 1.Qb6!
- threat
- 2.Qxd6#
- 1...Qxf3+
- 2.Sxf3#
- 1...Qd5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qc6
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qa6
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rd5
- 2.Re3#
- 1...Rc6
- 2.Re3#
- 1...d5
- 2.Rf5#
- threat
- 1.Qb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(f);CHECK,XR(E)::S(A),XQ(f)
- Q(f);N_GUARD::PXB(g)=Q
- Q(f);N_GUARD,N_PINR(E)::PXB(g)=Q
- Q(f);N_PINR(E)::R(E)
- R(b);N_PINR(E)::R(E)
- Tries
- Try
- R(G);CHECK
- Refutation
- R(b);P_SPINR(b)
- Try
- R(G);CHECK
- Refutation
- R(b);P_SPINR(b)
- Try
- R(G);CHECK
- Refutation
- R(b);P_SPINR(b)
- Try
- R(G);CHECK,N_SPINR(E)
- Vars
- K(c);P-FLIGHT,XR(G)::QAR1(C)
- Refutation
- K(c);P-FLIGHT
- Try
- R(G);CHECK,N_SPINR(E)
- Vars
- K(c);P-FLIGHT::QAR1(C)
- Refutation
- K(c);P-FLIGHT,XR(G)
- Try
- Q(C);XS(a)
- Threat
- QAB1(C)
- Vars
- Q(f);CHECK,XR(E)::S(A),XQ(f)
- Q(f);N_GUARD::PXB(g)=Q
- Refutation
- R(b);P_PINS(A),XQ(C)
- Try
- Q(C);CHECK
- Refutation
- S(a);XQ(C)
- Try
- P(L);
- Threat
- PXB(g)=Q
- Vars
- Q(f);CHECK,XR(E)::S(A),XQ(f)
- Q(f);N_PINR(E),XS(L)::R(E)
- R(b);XP(K)::PXB(g)=Q
- P(e);XP(J)::PXB(g)=Q
- R(b);::PXB(g)=Q
- Q(f);::PXB(g)=Q
- Q(f);N_PINR(E)::PXB(g)=Q
- Q(f);N_PINR(E)::R(E)
- S(a);::PXB(g)=Q
- Refutation
- B(g);XP(M)
- Try
- P(M);XB(g)
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,XR(E)::S(A),XQ(f)
- P(d);N_PINR(E)::S(M)
- Q(f);::S(M)
- Q(f);N_PINR(E)::R(E)
- Refutation
- Q(f);CHECK,N_PINR(E),XS(M)
- Try
- Actual
- Q(C);
- Threat
- QAB1(C),XP(d)
- Vars
- Q(f);CHECK,XR(E)::S(A),XQ(f)
- Q(f);N_GUARD::PXB(g)=Q
- Q(f);N_GUARD,N_PINR(E)::PXB(g)=Q
- R(b);N_PINR(E)::R(E)
- P(d);N_PINR(E)::R1(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).