MESON Chess Problem Database
Problem Display
PID: 90196 (2K5/6N1/2p1R2b/2R5/1PBk1P2/Npn2P1b/4p3/B1Qnq1r1 w - - 0 1)
Wielgos, Oskar
Die Schwalbe, 1986
#2
11 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Qxd2#
- 1...Qf2
- 2.Qd2#
- 1...Qg3
- 2.Qd2#
- 1...Qh4
- 2.Qd2#
- 1...Qf1
- 2.Qd2#
- 1...Rg4
- 2.Sf5#
- 2.Re4#
- 2.Rd6#
- 1...Bf1
- 2.Sf5#
- 2.Re4#
- 2.Rd6#
- 1...Bg2
- 2.Sf5#
- 2.Re4#
- 2.Rd6#
- 1...Bf5
- 2.Sxf5#
- 1...Bxe6+
- 2.Sxe6#
- 1...Bxf4
- 2.Qxf4#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...b2
- 2.Sc2#
- 1...Qd2
- Tries
- 1.Kb7?
- threat
- 2.Re4#
- 2.Rd6#
- 1...Bxe6
- 2.Sxe6#
- 1...Bxf4
- 2.Re4#
- 2.Qxf4#
- 1...Qd2
- 2.Re4#
- 2.Qxd2#
- 1...Rg5
- 2.Re4#
- 1...Rg6
- 2.Re4#
- 1...Bf5
- 2.Sxf5#
- 2.Rd6#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Rd6#
- 2.Qe3#
- 1...Se3
- 2.Re4#
- 2.Qxe3#
- 1...b2
- 2.Sc2#
- 1...Rxg7+!
- threat
- 1.Kc7?
- threat
- 2.Re4#
- 2.Rd6#
- 1...Bxf4+
- 2.Qxf4#
- 1...Bxe6
- 2.Sxe6#
- 1...Qd2
- 2.Re4#
- 2.Qxd2#
- 1...Rg5
- 2.Re4#
- 1...Rg6
- 2.Re4#
- 1...Bf5
- 2.Sxf5#
- 2.Rd6#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Rd6#
- 2.Qe3#
- 1...Se3
- 2.Re4#
- 2.Qxe3#
- 1...b2
- 2.Sc2#
- 1...Rxg7+!
- threat
- 1.Bxc3+?
- 1...Sxc3
- 2.Qe3#
- 1...Qxc3!
- 1...Sxc3
- 1.Re5?
- threat
- 2.Re4#
- 1...Bxe6+
- 2.Sxe6#
- 1...Bf5
- 2.Sxf5#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...b2!
- threat
- 1.Rf5?
- threat
- 2.Re4#
- 2.Rd6#
- 1...Bxf5
- 2.Sxf5#
- 1...Bxf4
- 2.Rxf4#
- 2.Re4#
- 2.Qxf4#
- 1...Qd2
- 2.Re4#
- 2.Qxd2#
- 1...Rg6
- 2.Re4#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Rd6#
- 2.Qe3#
- 1...Se3
- 2.Re4#
- 2.Qxe3#
- 1...b2!
- threat
- 1.Rxc6?
- threat
- 2.Sb5#
- 2.Rd6#
- 1...Bxe6+
- 2.Sxe6#
- 1...Bxf4
- 2.Sb5#
- 2.Qxf4#
- 1...b2
- 2.Sc2#
- 1...Sb2
- 2.Qe3#
- 1...Se3
- 2.Sb5#
- 2.Qxe3#
- 1...Rg5!
- threat
- 1.f5?
- threat
- 2.Re4#
- 2.Rd6#
- 1...Bxf5
- 2.Sxf5#
- 1...Bxc1
- 2.Re4#
- 1...b2
- 2.Sc2#
- 1...Qd2
- 2.Re4#
- 1...Qg3
- 2.Re4#
- 1...Qh4
- 2.Rd6#
- 1...Rg4
- 2.Rd6#
- 1...Rg6
- 2.Re4#
- 1...Bd2
- 2.Re4#
- 1...Bf4
- 2.Re4#
- 2.Qxf4#
- 1...Sf2
- 2.Rd6#
- 1...Se3
- 2.Re4#
- 1...Sb2!
- threat
- 1.Kb7?
- Keys
- 1.Kb8!
- threat
- 2.Re4#
- 2.Rd6#
- 1...Bxf4+
- 2.Qxf4#
- 1...Bxe6
- 2.Sxe6#
- 1...Qd2
- 2.Re4#
- 2.Qxd2#
- 1...Rg5
- 2.Re4#
- 1...Rg6
- 2.Re4#
- 1...Bf5
- 2.Sxf5#
- 2.Rd6#
- 1...Sb2
- 2.Qe3#
- 1...Sf2
- 2.Rd6#
- 2.Qe3#
- 1...Se3
- 2.Re4#
- 2.Qxe3#
- 1...b2
- 2.Sc2#
- threat
- 1.Kb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- Q(b);N_GUARD::QAR2(B),XQ(b)
- Q(b);N_GUARD::QAR2(B)
- B(g);N_GUARD::S(J),XB(g)
- B(g);CHECK,XR(I)::S(J),XB(g)
- B(j);OGATE,XP(G)::QAR2(B),XB(j)
- S(a);N_GUARD,N_SPINS(f)::QAB1(B)
- S(a);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
- P(e);N_GUARD,N_SPINS(f)::S(C)
- Tries
- Try
- K(K);N_SPINR(I),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- B(g);XR(I)::S(J),XB(g)
- R(c);::R1(I)
- S(a);N_GUARD,N_SPINS(f)::QAB1(B)
- P(e);N_GUARD,N_SPINS(f)::S(C)
- Refutation
- R(c);CHECK,XS(J)
- Try
- K(K);N_SPINR(I),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- B(j);CHECK,OGATE,XP(G)::QAR2(B),XB(j)
- B(g);XR(I)::S(J),XB(g)
- R(c);::R1(I)
- S(a);N_GUARD,N_SPINS(f)::QAB1(B)
- P(e);N_GUARD,N_SPINS(f)::S(C)
- Refutation
- R(c);CHECK,XS(J)
- Try
- B(A);CHECK,XS(f)
- Vars
- S(a);XB(A)::QAB1(B)
- Refutation
- Q(b);XB(A)
- Try
- R(H);
- Threat
- R1(H)
- Vars
- B(g);CHECK,XR(I)::S(J),XB(g)
- B(g);N_GUARD::S(J),XB(g)
- S(a);N_GUARD,N_SPINS(f)::QAB1(B)
- S(a);N_GUARD::QAB1(B)
- Refutation
- P(e);N_SPINS(f)
- Try
- R(H);N_SPINR(I)
- Threat
- DUALS(2)
- Vars
- B(g);P_PINR(I),XR(H)::S(J),XB(g)
- R(c);::R1(I)
- S(a);N_GUARD,N_SPINS(f)::QAB1(B)
- Refutation
- P(e);N_SPINS(f)
- Try
- R(H);XP(i)
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,XR(I)::S(J),XB(g)
- P(e);N_GUARD,N_SPINS(f)::S(C)
- S(a);N_GUARD,N_SPINS(f)::QAB1(B)
- Refutation
- R(c);
- Try
- P(G);N_SPINR(I)
- Threat
- DUALS(2)
- Vars
- B(g);P_PINR(I),XP(G)::S(J),XB(g)
- B(j);XQ(B)::R1(I)
- P(e);N_GUARD,N_SPINS(f)::S(C)
- Q(b);::R1(I)
- Q(b);::R(I)
- R(c);::R(I)
- R(c);::R1(I)
- B(j);::R1(I)
- S(a);::R(I)
- S(a);::R1(I)
- Refutation
- S(a);N_SPINS(f)
- Try
- Actual
- K(K);N_SPINR(I),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- B(j);CHECK,OGATE,XP(G)::QAR2(B),XB(j)
- B(g);XR(I)::S(J),XB(g)
- R(c);::R1(I)
- S(a);N_GUARD,N_SPINS(f)::QAB1(B)
- P(e);N_GUARD,N_SPINS(f)::S(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).