MESON Chess Problem Database
Problem Display
PID: 10492 (B7/r1P2p1K/3P1R1N/2pPkn2/rPp2R2/3p4/2PNPP2/3b2n1 w - - 0 1)
Keller, Michael
Die Schwalbe, 1965
#2
13 + 10
| 23 | Die Schwalbe | 1966 |
| 4655 | Michael Keller Ein Meister der Schachkomposition | 1994 |
SOLUTION
- SOUND
- Sets
- 1...Kxf4
- 2.Rxf5#
- 1...Kxf6
- 2.Rxf5#
- 1...Se3
- 2.Sxf7#
- 1...Sg3
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- 1...Sd4
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- 1...Sh4
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- 1...Sxd6
- 2.Sg4#
- 1...Sxh6
- 2.Sxc4#
- 1...Se7
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- 1...Sg7
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- 1...Kxf4
- Tries
- 1.Sxc4+?
- 1...Kxf6
- 2.Rxf5#
- 1...Kxf4!
- 1...Kxf6
- 1.e3?
- threat
- 2.R4xf5#
- 1...Kxf6
- 2.Rxf5#
- 1...Sxe3
- 2.Sxf7#
- 1...Sxh6
- 2.Sxc4#
- 1...Bg4
- 2.Sxg4#
- 1...Sg3
- 2.Sxc4#
- 2.Sxf7#
- 1...Sd4
- 2.Sxc4#
- 2.Sxf7#
- 1...Sh4
- 2.Sxc4#
- 2.Sxf7#
- 1...Se7
- 2.Sxc4#
- 2.Sxf7#
- 1...Sg7
- 2.Sxc4#
- 2.Sxf7#
- 1...Sxd6!
- threat
- 1.bxc5?
- threat
- 2.R6xf5#
- 1...Kxf4
- 2.Rxf5#
- 1...Kxf6
- 2.Rxf5#
- 1...Sxd6
- 2.Sg4#
- 1...Se3
- 2.Sxf7#
- 1...Sg3
- 2.Sg4#
- 2.Sxf7#
- 1...Sd4
- 2.Sg4#
- 2.Sxf7#
- 1...Sh4
- 2.Sg4#
- 2.Sxf7#
- 1...Se7
- 2.Sg4#
- 2.Sxf7#
- 1...Sg7
- 2.Sg4#
- 2.Sxf7#
- 1...Sxh6!
- threat
- 1.c8S?
- threat
- 2.R6xf5#
- 1...Kxf4
- 2.Rxf5#
- 1...Kxf6
- 2.Rxf5#
- 1...Sxd6
- 2.Sg4#
- 1...Sxh6
- 2.Sxc4#
- 1...Sg3
- 2.Sxc4#
- 2.Sg4#
- 1...Sd4
- 2.Sxc4#
- 2.Sg4#
- 1...Sh4
- 2.Sxc4#
- 2.Sg4#
- 1...Se7
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- 1...Sg7
- 2.Sxc4#
- 2.Sg4#
- 1...Se3!
- threat
- 1.Sxc4+?
- Keys
- 1.c3!
- threat
- 2.R4xf5#
- 1...Kxf4
- 2.Rxf5#
- 1...Kxf6
- 2.Rxf5#
- 1...Sxd6
- 2.Sg4#
- 1...Sxh6
- 2.Sxc4#
- 1...Se3
- 2.Sxf7#
- 1...Sg3
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- 1...Sd4
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- 1...Sh4
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- 1...Se7
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- 1...Sg7
- 2.Sxc4#
- 2.Sg4#
- 2.Sxf7#
- threat
- 1.c3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(g);P_SPINS(h),S_FLIGHT,XR(F)::R1(I),XS(h)
- K(g);P_SPINS(h),S_FLIGHT,XR(I)::R1(F),XS(h)
- S(h);::S(J),XP(j)
- S(h);XP(H)::S(J)
- S(h);XS(J)::S(B),XP(e)
- Tries
- Try
- S(B);CHECK,XP(e)
- Vars
- K(g);P_SPINS(h),S_FLIGHT,XR(I)::R1(F),XS(h)
- Refutation
- K(g);P_SPINS(h),S_FLIGHT,XR(F)
- Try
- P(C);
- Threat
- R1(F),XS(h)
- Vars
- K(g);P_SPINS(h),S_FLIGHT,XR(I)::R1(F),XS(h)
- S(h);XP(C)::S(J),XP(j)
- S(h);XS(J)::S(B),XP(e)
- B(a);N_GUARD::S(J),XB(a)
- Refutation
- S(h);XP(H)
- Try
- P(E);XP(f)
- Threat
- R1(I),XS(h)
- Vars
- K(g);P_SPINS(h),S_FLIGHT,XR(F)::R1(I),XS(h)
- K(g);P_SPINS(h),S_FLIGHT,XR(I)::R1(F),XS(h)
- S(h);XP(H)::S(J)
- S(h);::S(J),XP(j)
- Refutation
- S(h);XS(J)
- Try
- P(K);
- Threat
- R1(I),XS(h)
- Vars
- K(g);P_SPINS(h),S_FLIGHT,XR(F)::R1(I),XS(h)
- K(g);P_SPINS(h),S_FLIGHT,XR(I)::R1(F),XS(h)
- S(h);XP(H)::S(J)
- S(h);XS(J)::S(B),XP(e)
- Refutation
- S(h);
- Try
- Actual
- P(A);
- Threat
- R1(F),XS(h)
- Vars
- K(g);P_SPINS(h),S_FLIGHT,XR(F)::R1(I),XS(h)
- K(g);P_SPINS(h),S_FLIGHT,XR(I)::R1(F),XS(h)
- S(h);XP(H)::S(J)
- S(h);XS(J)::S(B),XP(e)
- S(h);::S(J),XP(j)
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).