MESON Chess Problem Database
Problem Display
PID: 109714 (2r5/1B1P2r1/1Nq2R2/1p2p3/4kP1N/n1Q5/4P1R1/2K5 w - - 0 1)
Wielgos, Oskar
Match: Israel - West Germany, 1980
#2
10 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Bxd5#
- 1...Ra8
- 2.Bxc6#
- 1...Rb8
- 2.Bxc6#
- 1...Rd8
- 2.Bxc6#
- 1...Re8
- 2.Bxc6#
- 1...Rf8
- 2.Bxc6#
- 1...Rg8
- 2.Bxc6#
- 1...Rh8
- 2.Bxc6#
- 1...Sc2
- 2.Qxe5#
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...exf4
- 2.Re6#
- 1...Qd5
- Tries
- 1.Kd1?
- threat
- 2.Qxe5#
- 2.Qd3#
- 1...Qd5+
- 2.Bxd5#
- 2.Qd3#
- 1...exf4
- 2.Re6#
- 1...Rg3
- 2.Qxe5#
- 1...Rg5
- 2.Qd3#
- 1...Re7
- 2.Qd3#
- 1...Re8
- 2.Bxc6#
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Rxd7+!
- threat
- 1.Kb2?
- threat
- 2.Qxe5#
- 2.Qd3#
- 1...Rxd7
- 2.Qxe5#
- 1...exf4
- 2.Re6#
- 1...Rg3
- 2.Qxe5#
- 1...Rg5
- 2.Qd3#
- 1...Re7
- 2.Qd3#
- 1...Re8
- 2.Bxc6#
- 2.Qd3#
- 1...Sc4+!
- threat
- 1.Sf3?
- threat
- 2.Sd2#
- 1...Rxd7
- 2.Sg5#
- 1...Sc4
- 2.Qd3#
- 1...Sb1!
- threat
- 1.Sc4?
- threat
- 2.Qxe5#
- 2.Qd3#
- 1...Rxd7
- 2.Qxe5#
- 1...Sxc4
- 2.Qd3#
- 1...bxc4
- 2.Qxe5#
- 1...exf4
- 2.Qe5#
- 2.Qd3#
- 1...Rg3
- 2.Qxe5#
- 1...Rg5
- 2.Qd3#
- 1...Re7
- 2.Qd3#
- 1...Re8
- 2.Bxc6#
- 2.Qd3#
- 1...Kd5!
- threat
- 1.Sxc8?
- threat
- 2.Bxc6#
- 1...Kd5
- 2.Bxc6#
- 1...Qxb7
- 2.Qxe5#
- 2.Qd3#
- 1...Qd5
- 2.Sd6#
- 2.Qxe5#
- 2.Qd3#
- 1...Rxd7!
- threat
- 1.Rg3?
- threat
- 2.Re3#
- 1...exf4
- 2.Re6#
- 1...Sc2
- 2.Qxe5#
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Rxg3!
- threat
- 1.Rxc6?
- threat
- 2.Rc4#
- 2.Qxe5#
- 1...Kxf4
- 2.Rf6#
- 2.Qf3#
- 1...exf4
- 2.Rc4#
- 2.Re6#
- 2.Rc7#
- 2.Rxc8#
- 1...Rg5
- 2.Rc4#
- 1...Re7
- 2.Rc4#
- 1...Re8
- 2.Rc4#
- 2.Rf6#
- 1...Sc4
- 2.Rxc4#
- 1...Rxc6!
- threat
- 1.dxc8Q?
- threat
- 2.Bxc6#
- 2.Qf5#
- 2.Q8xc6#
- 1...Qxb7
- 2.Qxe5#
- 2.Qf5#
- 2.Qd3#
- 1...Rxb7
- 2.Qf5#
- 2.Q8xc6#
- 1...Qd5
- 2.Bxd5#
- 2.Qxe5#
- 2.Qf5#
- 2.Qd3#
- 1...Rg5
- 2.Bxc6#
- 2.Q8xc6#
- 1...Rc7
- 2.Qf5#
- 1...Rd7!
- threat
- 1.Kd1?
- Keys
- 1.Sf5!
- threat
- 2.Sd6#
- 1...Kxf4
- 2.Sd6#
- 1...Rxd7
- 2.Sg3#
- 1...Sc4
- 2.Qf3#
- threat
- 1.Sf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(e);OGATE::B(I),XQ(e)
- R(g);N_GUARD::B(I),XQ(e)
- S(a);N_PINQ(D)::QAB1(D)
- P(d);OGATEB,SBLOCK,XP(E)::R(H)
- Tries
- Try
- K(A);N_SPINQ(D),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- P(d);OGATEB,SBLOCK,XP(E)::R(H)
- R(f);::QAR1(D),XP(d)
- R(f);::QAB1(D)
- S(a);::QAB1(D)
- Refutation
- R(f);CHECK,XP(J)
- Try
- K(A);N_SPINQ(D),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(f);XP(J)::QAR1(D),XP(d)
- P(d);OGATEB,SBLOCK,XP(E)::R(H)
- R(f);::QAR1(D),XP(d)
- R(f);::QAB1(D)
- Refutation
- S(a);CHECK
- Try
- S(F);
- Threat
- S(F)
- Vars
- R(f);N_GUARD,XP(J)::S(F)
- S(a);N_PINQ(D)::QAB1(D)
- Refutation
- S(a);
- Try
- S(G);N_SPINQ(D)
- Threat
- DUALS(2)
- Vars
- R(f);XP(J)::QAR1(D),XP(d)
- S(a);XS(G)::QAB1(D)
- P(c);XS(G)::QAR1(D),XP(d)
- R(f);::QAR1(D),XP(d)
- R(f);::QAB1(D)
- Refutation
- K(b);S_FLIGHT
- Try
- S(G);XR(g)
- Threat
- B(I),XQ(e)
- Vars
- K(b);S_FLIGHT::B(I),XQ(e)
- Refutation
- R(f);XP(J)
- Try
- R(C);
- Threat
- R1(C)
- Vars
- P(d);OGATEB,SBLOCK,XP(E)::R(H)
- S(a);N_PINQ(D)::QAB1(D)
- Refutation
- R(f);XR(C)
- Try
- R(H);N_SPINQ(D),XQ(e)
- Threat
- DUALS(2)
- Vars
- R(f);::B(I)+R(H),DCHECK
- S(a);::B(I)+R(H),DCHECK,XS(a)
- Refutation
- R(g);P_PINQ(D),P_SPINR(g),XR(H)
- Try
- P(J);XR(g)
- Threat
- DUALS(3)
- Vars
- R(f);::QAB1(J)
- Refutation
- R(f);
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- K(b);N_SPINQ(e),P-FLIGHT,XP(E)::R(H)+S(F)
- R(f);N_GUARD,XP(J)::S(F)
- S(a);N_PINQ(D)::QAB1(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).