MESON Chess Problem Database
Problem Display
PID: 92083 (q2b4/N4pK1/7R/2Ppk3/3R4/3rPQ1n/6P1/1B1r4 w - - 0 1)
Wielgos, Oskar
Schach, 1976
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc6
- 2.Sxc6#
- 1...Qxa7
- 2.Qxd5#
- 1...Qb8
- 2.Sc6#
- 2.Qxd5#
- 1...Qc8
- 2.Qxd5#
- 1...Rd2
- 2.Qf5#
- 1...Ra3
- 2.Qf5#
- 1...Rb3
- 2.Qf5#
- 1...Rc3
- 2.Qf5#
- 1...Rxe3
- 2.Qxe3#
- 1...Rxd4
- 2.Qf5#
- 1...Ba5
- 2.Qf6#
- 1...Bb6
- 2.Qf6#
- 1...Bf6+
- 2.Qxf6#
- 1...Bc7
- 2.Qf6#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sg5
- 2.Qf4#
- 1...Qc6
- Tries
- 1.Rxd5+?
- 1...Rxd5
- 2.Qe4#
- 2.Qf5#
- 1...Qxd5!
- 1...Rxd5
- 1.Rh5+?
- 1...Ke6
- 2.Qxf7#
- 1...Bg5
- 2.Qf6#
- 1...f5
- 2.Qxf5#
- 1...Sg5!
- 1...Ke6
- 1.Rc6?
- threat
- 2.Qxd5#
- 1...Bf6+
- 2.Qxf6#
- 1...Rxd4
- 2.Qf5#
- 1...Sf4
- 2.Qxf4#
- 1...Qxc6!
- threat
- 1.Rf6?
- threat
- 2.Qf5#
- 1...Bxf6+
- 2.Qxf6#
- 1...Rxe3
- 2.Qxe3#
- 1...Qc8
- 2.Qxd5#
- 1...Sf4
- 2.Qxf4#
- 1...Rf1!
- threat
- 1.Qg3+?
- 1...Sf4
- 2.Qxf4#
- 1...Kf5!
- 1...Sf4
- 1.Qxf7?
- threat
- 2.Re6#
- 2.Qe6#
- 1...Bf6+
- 2.Qxf6#
- 1...Qxa7
- 2.Re6#
- 1...Qb7
- 2.Re6#
- 1...Qc6
- 2.Sxc6#
- 1...Qc8
- 2.Qxd5#
- 1...Sf4
- 2.Qxf4#
- 1...Sg5
- 2.Qf4#
- 1...Rxe3!
- threat
- 1.g4?
- threat
- 2.Qf5#
- 1...Bf6+
- 2.Qxf6#
- 1...Rxe3
- 2.Qxe3#
- 1...Qc8
- 2.Qxd5#
- 1...Sf4
- 2.Qxf4#
- 1...f5
- 2.Qxf5#
- 1...Rf1!
- threat
- 1.Rxd5+?
- Keys
- 1.c6!
- threat
- 2.Qxd5#
- 1...Bf6+
- 2.Qxf6#
- 1...Qxc6
- 2.Sxc6#
- 1...Rxd4
- 2.Qf5#
- 1...Sf4
- 2.Qxf4#
- threat
- 1.c6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- Q(g);N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD,XS(H)::QAR1(D),XP(d)
- Q(g);N_GUARD::QAR1(D),XP(d)
- R(b);::QAR1(D)
- R(b);OGATE,XP(C)::QAR2(D),XR(b)
- R(b);XR(E)::QAR1(D)
- B(h);N_GUARD::QAB1(D)
- B(h);CHECK,N_GUARD::QAB1(D),XB(h)
- S(c);N_GUARD::QAB1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- Tries
- Try
- R(E);CHECK,XP(d)
- Refutation
- Q(g);XR(E)
- Try
- R(G);CHECK
- Vars
- K(e);P-FLIGHT::QAB1(D),XP(f)
- B(h);P_SPINB(h)::QAB1(D)
- P(f);P_SPINP(f)::QAR1(D),XP(f)
- Refutation
- S(c);P_SPINS(c)
- Try
- R(G);
- Threat
- QAR1(D),XP(d)
- Vars
- B(h);CHECK,N_GUARD::QAB1(D),XB(h)
- R(b);XR(E)::QAR1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- Refutation
- Q(g);XR(G)
- Try
- R(G);
- Threat
- QAR1(D)
- Vars
- B(h);CHECK,OGATE,XR(G)::QAB1(D),XB(h)
- R(b);OGATE,XP(C)::QAR2(D),XR(b)
- Q(g);N_GUARD::QAR1(D),XP(d)
- S(c);N_GUARD::QAB1(D),XS(c)
- Refutation
- R(a);
- Try
- Q(D);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAB1(D),XS(c)
- Refutation
- K(e);P-FLIGHT,P_SPINR(b)
- Try
- Q(D);XP(f)
- Threat
- DUALS(2)
- Vars
- B(h);CHECK,N_GUARD::QAB1(D),XB(h)
- Q(g);P_PINQ(D),XS(H)::R1(G)
- Q(g);P_PINQ(D)::R1(G)
- Q(g);N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD::QAR1(D),XP(d)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(D)
- Refutation
- R(b);XP(C)
- Try
- P(B);
- Threat
- QAR1(D)
- Vars
- B(h);CHECK,N_GUARD::QAB1(D),XB(h)
- R(b);OGATE,XP(C)::QAR2(D),XR(b)
- Q(g);N_GUARD::QAR1(D),XP(d)
- S(c);N_GUARD::QAB1(D),XS(c)
- P(f);::QAR1(D),XP(f)
- Refutation
- R(a);
- Try
- Actual
- P(F);
- Threat
- QAR1(D),XP(d)
- Vars
- B(h);CHECK,N_GUARD::QAB1(D),XB(h)
- Q(g);XP(F)::S(H),XQ(g)
- R(b);XR(E)::QAR1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
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).