MESON Chess Problem Database
Problem Display
PID: 89796 (b7/1Q3PPB/1nPBpnKp/2PRP2N/2pNk3/2P1p3/4P2b/8 w - - 0 1)
Fabel, Karl
Die Schwalbe, 1968
#2
14 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kxd5
- 2.Sxf6#
- 1...Bf4
- 2.Sxf6#
- 1...Bxe5
- 2.Rxe5#
- 1...Sbxd5
- 2.Qb1#
- 1...Sfxd5
- 2.Kxh6#
- 1...exd5
- 2.Kxf6#
- 1...Kxd5
- Tries
- 1.Kxh6+?
- 1...Kxd5
- 2.Sxf6#
- 1...Sxh7!
- 1...Kxd5
- 1.Sc2?
- threat
- 2.Rd4#
- 1...Kxd5
- 2.Sxf6#
- 1...Bxe5
- 2.Rxe5#
- 1...Sfxd5
- 2.Kxh6#
- 1...exd5
- 2.Kxf6#
- 1...Sbxd5!
- threat
- 1.Sb3?
- threat
- 2.Rd4#
- 1...Kxd5
- 2.Sxf6#
- 1...Bxe5
- 2.Rxe5#
- 1...Sfxd5
- 2.Kxh6#
- 1...exd5
- 2.Kxf6#
- 1...Sbxd5!
- threat
- 1.Sb5?
- threat
- 2.Rd4#
- 1...Kxd5
- 2.Sxf6#
- 1...Bxe5
- 2.Rxe5#
- 1...Sfxd5
- 2.Kxh6#
- 1...exd5
- 2.Kxf6#
- 1...Sbxd5!
- threat
- 1.Sxe6?
- threat
- 2.Sxf6#
- 2.Rd4#
- 1...Bxe5
- 2.Rxe5#
- 1...Sbxd5
- 2.Qb1#
- 1...Sfxd5
- 2.Kxh6#
- 1...Sxh5
- 2.Rd4#
- 1...Sxh7
- 2.Rd4#
- 1...Sbd7
- 2.Rd4#
- 1...Sg4
- 2.Rd4#
- 1...Sfd7
- 2.Rd4#
- 1...Se8
- 2.Rd4#
- 1...Sg8
- 2.Rd4#
- 1...Kxd5!
- threat
- 1.Kxh6+?
- Keys
- 1.Sf3!
- threat
- 2.Rd4#
- 1...Kxd5
- 2.Sxf6#
- 1...Bxe5
- 2.Rxe5#
- 1...Sbxd5
- 2.Qb1#
- 1...Sfxd5
- 2.Kxh6#
- 1...exd5
- 2.Kxf6#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- K(d);S_FLIGHT,XR(E)::S(G),XS(g)
- B(a);SBLOCK::S(G),XS(g)
- B(a);OGATE,XP(F)::R1(E),XB(a)
- S(e);OGATE,SBLOCK,XR(E)::QAB(K)
- S(g);N_GUARD,SBLOCK,XR(E)::B(N)+K(J),XP(h)
- P(f);SBLOCK,XR(E)::B(N)+K(J),XS(g)
- Tries
- Try
- K(J);CHECK,P-FLIGHT,XP(h)
- Vars
- K(d);S_FLIGHT,XR(E)::S(G),XS(g)
- Refutation
- S(g);XB(N)
- Try
- S(C);
- Threat
- R1(E)
- Vars
- K(d);S_FLIGHT,XR(E)::S(G),XS(g)
- B(a);OGATE,XP(F)::R1(E),XB(a)
- S(g);N_GUARD,SBLOCK,XR(E)::B(N)+K(J),XP(h)
- P(f);SBLOCK,XR(E)::B(N)+K(J),XS(g)
- Refutation
- S(e);XR(E)
- Try
- S(C);
- Threat
- R1(E)
- Vars
- K(d);S_FLIGHT,XR(E)::S(G),XS(g)
- B(a);OGATE,XP(F)::R1(E),XB(a)
- S(g);N_GUARD,SBLOCK,XR(E)::B(N)+K(J),XP(h)
- P(f);SBLOCK,XR(E)::B(N)+K(J),XS(g)
- Refutation
- S(e);XR(E)
- Try
- S(C);
- Threat
- R1(E)
- Vars
- K(d);S_FLIGHT,XR(E)::S(G),XS(g)
- B(a);OGATE,XP(F)::R1(E),XB(a)
- S(g);N_GUARD,SBLOCK,XR(E)::B(N)+K(J),XP(h)
- P(f);SBLOCK,XR(E)::B(N)+K(J),XS(g)
- Refutation
- S(e);XR(E)
- Try
- S(C);XP(f)
- Threat
- DUALS(2)
- Vars
- B(a);OGATE,XP(F)::R1(E),XB(a)
- S(e);OGATE,SBLOCK,XR(E)::QAB(K)
- S(g);N_GUARD,SBLOCK,XR(E)::B(N)+K(J),XP(h)
- S(g);XS(G)::R1(E)
- S(g);XB(N)::R1(E)
- S(e);::R1(E)
- S(g);::R1(E)
- Refutation
- K(d);S_FLIGHT,XR(E)
- Try
- Actual
- S(C);
- Threat
- R1(E)
- Vars
- K(d);S_FLIGHT,XR(E)::S(G),XS(g)
- B(a);OGATE,XP(F)::R1(E),XB(a)
- S(e);OGATE,SBLOCK,XR(E)::QAB(K)
- S(g);N_GUARD,SBLOCK,XR(E)::B(N)+K(J),XP(h)
- P(f);SBLOCK,XR(E)::B(N)+K(J),XS(g)
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).