MESON Chess Problem Database
Problem Display
PID: 209150 (2r1R3/1n3p2/1Q6/1N1kB2n/r2p2p1/pPb1p2q/K1B3N1/8 w - - 0 1)
Muller, Dieter
Deutsche Schachblatter, 1995
#2
8 + 12
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rc7
- 2.Sxc7#
- 1...Ra8
- 2.Sc7#
- 1...Rb8
- 2.Sc7#
- 1...Rd8
- 2.Sc7#
- 1...Sg3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...Sa5
- 2.Qd6#
- 1...Sc5
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sd8
- 2.Qd6#
- 1...Rc7
- Tries
- 1.Bh2?
- threat
- 2.Be4#
- 2.Re5#
- 1...Qxg2
- 2.Re5#
- 1...Qxh2
- 2.Be4#
- 1...Rxe8
- 2.Sc7#
- 1...Qf3
- 2.Re5#
- 1...Qg3
- 2.Be4#
- 1...Sg3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 2.Be4#
- 1...Sf6
- 2.Sf4#
- 2.Re5#
- 1...Sc5
- 2.Re5#
- 2.Qd6#
- 1...Sd6
- 2.Re5#
- 2.Qxd6#
- 1...g3
- 2.Be4#
- 1...f5
- 2.Re5#
- 1...f6
- 2.Be4#
- 1...d3!
- threat
- 1.Bxd4?
- threat
- 2.Be4#
- 2.Re5#
- 1...Qxg2
- 2.Re5#
- 1...Rxe8
- 2.Sxc3#
- 2.Sc7#
- 1...Bxd4
- 2.Be4#
- 1...Qh2
- 2.Sxe3#
- 2.Be4#
- 1...Qf3
- 2.Re5#
- 1...Qg3
- 2.Be4#
- 1...Sg3
- 2.Sxe3#
- 2.Sf4#
- 2.Re5#
- 1...Sf6
- 2.Sf4#
- 2.Re5#
- 1...Sc5
- 2.Re5#
- 2.Qd6#
- 1...Sd6
- 2.Re5#
- 2.Qxd6#
- 1...f5
- 2.Re5#
- 2.Qe6#
- 1...f6
- 2.Be4#
- 2.Qe6#
- 1...Rxd4!
- threat
- 1.Bf4?
- threat
- 2.Be4#
- 2.Re5#
- 1...Qxg2
- 2.Re5#
- 1...Rxe8
- 2.Sc7#
- 1...Sxf4
- 2.Sxf4#
- 2.Be4#
- 1...Qf3
- 2.Re5#
- 1...Sg3
- 2.Re5#
- 1...Sf6
- 2.Re5#
- 1...Sc5
- 2.Re5#
- 2.Qd6#
- 1...Sd6
- 2.Re5#
- 2.Qxd6#
- 1...f5
- 2.Re5#
- 1...f6
- 2.Be4#
- 1...d3!
- threat
- 1.Bd6?
- threat
- 2.Be4#
- 2.Re5#
- 1...Qxg2
- 2.Re5#
- 1...Rxe8
- 2.Sc7#
- 1...Sxd6
- 2.Qxd6#
- 1...Qh2
- 2.Be4#
- 1...Qf3
- 2.Re5#
- 1...Qg3
- 2.Be4#
- 1...Sg3
- 2.Sf4#
- 2.Re5#
- 1...Sf6
- 2.Sf4#
- 2.Re5#
- 1...Sc5
- 2.Re5#
- 1...f5
- 2.Re5#
- 1...f6
- 2.Be4#
- 1...d3!
- threat
- 1.Bf6?
- threat
- 2.Be4#
- 2.Re5#
- 1...Qxg2
- 2.Re5#
- 1...Rxe8
- 2.Sc7#
- 1...Sxf6
- 2.Sf4#
- 1...Qh2
- 2.Be4#
- 1...Qf3
- 2.Re5#
- 1...Qg3
- 2.Be4#
- 1...Sg3
- 2.Sf4#
- 2.Re5#
- 1...Sc5
- 2.Re5#
- 2.Qd6#
- 1...Sd6
- 2.Re5#
- 2.Qxd6#
- 1...d3!
- threat
- 1.Bc7?
- threat
- 2.Be4#
- 2.Re5#
- 1...Qxg2
- 2.Re5#
- 1...Rxc7
- 2.Sxc7#
- 2.Be4#
- 1...d3
- 2.Sxc3#
- 1...Qh2
- 2.Be4#
- 1...Qf3
- 2.Re5#
- 1...Qg3
- 2.Be4#
- 1...Sg3
- 2.Sf4#
- 2.Re5#
- 1...Sf6
- 2.Sf4#
- 2.Re5#
- 1...Sc5
- 2.Re5#
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...f5
- 2.Re5#
- 1...f6
- 2.Be4#
- 1...Rxe8!
- threat
- 1.Bg7?
- threat
- 2.Be4#
- 2.Re5#
- 1...Qxg2
- 2.Re5#
- 1...Rxe8
- 2.Sc7#
- 1...Sxg7
- 2.Sf4#
- 2.Be4#
- 1...Qh2
- 2.Be4#
- 1...Qf3
- 2.Re5#
- 1...Qg3
- 2.Be4#
- 1...Sg3
- 2.Sf4#
- 2.Re5#
- 1...Sf6
- 2.Sf4#
- 1...Sc5
- 2.Re5#
- 2.Qd6#
- 1...Sd6
- 2.Re5#
- 2.Qxd6#
- 1...f5
- 2.Re5#
- 1...f6
- 2.Be4#
- 1...d3!
- threat
- 1.Bh8?
- threat
- 2.Be4#
- 2.Re5#
- 1...Qxg2
- 2.Re5#
- 1...Rxe8
- 2.Sc7#
- 1...Qh2
- 2.Be4#
- 1...Qf3
- 2.Re5#
- 1...Qg3
- 2.Be4#
- 1...Sg3
- 2.Sf4#
- 2.Re5#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 2.Be4#
- 1...Sc5
- 2.Re5#
- 2.Qd6#
- 1...Sd6
- 2.Re5#
- 2.Qxd6#
- 1...f5
- 2.Re5#
- 1...f6
- 2.Be4#
- 1...d3!
- threat
- 1.Qxb7+?
- 1...Kc5
- 2.Bd6#
- 1...Rc6!
- 1...Kc5
- 1.Bh2?
- Keys
- 1.Bg3!
- threat
- 2.Be4#
- 2.Re5#
- 1...Qxg2
- 2.Re5#
- 1...Qxg3
- 2.Be4#
- 1...Rxe8
- 2.Sc7#
- 1...Sxg3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 2.Be4#
- 1...Sf6
- 2.Sf4#
- 2.Re5#
- 1...Sc5
- 2.Re5#
- 2.Qd6#
- 1...Sd6
- 2.Re5#
- 2.Qxd6#
- 1...d3
- 2.Sxe3#
- 1...f5
- 2.Re5#
- 1...f6
- 2.Be4#
- threat
- 1.Bg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 11
- Sets
- R(l);N_GUARD::S(E),XR(l)
- R(l);N_GUARD::S(E)
- S(i);N_GUARD::S(C)
- S(i);N_GUARD::S(C),XS(i)
- S(j);N_GUARD::QAR1(G)
- S(j);N_GUARD::QAR1(G),XS(j)
- Tries
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(d);P_PINB(B),XS(C)::R1(H)
- Q(d);XB(F)::B(B)
- R(l);N_GUARD,XR(H)::S(E)
- Q(d);::R1(H)
- Q(d);::B(B)
- S(i);N_GUARD::S(C)
- P(g);::B(B)
- P(k);::R1(H)
- P(k);::B(B)
- Refutation
- P(f);
- Try
- B(F);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(d);P_PINB(B),XS(C)::R1(H)
- B(b);XB(F)::B(B)
- Q(d);::R1(H)
- Q(d);::B(B)
- Refutation
- R(e);XB(F)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(d);P_PINB(B),XS(C)::R1(H)
- R(l);N_GUARD,XR(H)::S(E)
- Q(d);::R1(H)
- S(i);::R1(H)
- P(k);::R1(H)
- P(k);::B(B)
- Refutation
- P(f);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(d);P_PINB(B),XS(C)::R1(H)
- R(l);N_GUARD,XR(H)::S(E)
- S(j);OGATE,XB(F)::QAR1(G),XS(j)
- Q(d);::B(B)
- Q(d);::R1(H)
- S(j);::R1(H)
- P(k);::R1(H)
- P(k);::B(B)
- Refutation
- P(f);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(d);P_PINB(B),XS(C)::R1(H)
- R(l);N_GUARD,XR(H)::S(E)
- S(i);N_GUARD,XB(F)::S(C)
- Q(d);::B(B)
- Q(d);::R1(H)
- Refutation
- P(f);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(d);P_PINB(B),XS(C)::R1(H)
- P(f);N_GUARD::S(E),XB(b)
- Q(d);::B(B)
- Q(d);::R1(H)
- S(j);N_GUARD::QAR1(G),XS(j)
- P(k);::R1(H)
- P(k);::B(B)
- Refutation
- R(l);XR(H)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(d);P_PINB(B),XS(C)::R1(H)
- R(l);N_GUARD,XR(H)::S(E)
- Q(d);::B(B)
- Q(d);::R1(H)
- S(i);N_GUARD::S(C)
- P(k);::R1(H)
- P(k);::B(B)
- Refutation
- P(f);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(d);P_PINB(B),XS(C)::R1(H)
- R(l);N_GUARD,XR(H)::S(E)
- Q(d);::B(B)
- Q(d);::R1(H)
- S(i);N_GUARD::S(C)
- P(k);::R1(H)
- P(k);::B(B)
- Refutation
- P(f);
- Try
- Q(G);CHECK,XS(j)
- Vars
- K(h);P-FLIGHT::B(F)
- Refutation
- R(l);P_SPINR(l)
- Try
- Actual
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(d);P_PINB(B),XS(C)::R1(H)
- Q(d);XB(F)::B(B)
- R(l);N_GUARD,XR(H)::S(E)
- S(i);N_GUARD,XB(F)::S(C)
- P(f);N_GUARD::S(C),XP(c)
- P(k);::R1(H)
- P(k);::B(B)
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).