MESON Chess Problem Database
Problem Display
PID: 120105 (8/p7/p2p4/K1kP2Q1/3Nr3/1P2PB2/8/8 w - - 0 1)
Semerad, Bohumil
Casopis ceskoslovenskych sachistu, 1912
#2
7 + 5
| 6490 | yacpdb | 2009 |
| 5454 | Near Snap | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Se6#
- 1...Rg4
- 2.Se6#
- 1...Rh4
- 2.Se6#
- 1...Re6
- 2.Sxe6#
- 1...Rf4
- Tries
- 1.Qe7?
- 1...Kxd5
- 2.Qg5#
- 1...Rxe3
- 2.Qxa7#
- 1...Rxd4
- 2.Qxa7#
- 2.Qc7#
- 1...Rf4
- 2.Se6#
- 2.Qxa7#
- 2.Qc7#
- 1...Rg4
- 2.Se6#
- 2.Qxa7#
- 2.Qc7#
- 1...Rh4
- 2.Se6#
- 2.Qxa7#
- 2.Qc7#
- 1...Re5
- 2.Qxa7#
- 2.Qc7#
- 1...Re6
- 2.Sxe6#
- 2.Qxa7#
- 2.Qc7#
- 1...Rxe7!
- 1...Kxd5
- 1.Qf5?
- 1...Rxd4
- 2.Qc8#
- 1...Rf4
- 2.Se6#
- 2.Qc2#
- 2.Qc8#
- 1...Rg4
- 2.Se6#
- 2.Qc2#
- 2.Qc8#
- 1...Rh4
- 2.Se6#
- 2.Qc2#
- 2.Qc8#
- 1...Re5
- 2.Qc2#
- 2.Qc8#
- 1...Re6
- 2.Sxe6#
- 2.Qc2#
- 1...Re7
- 2.Qc2#
- 1...Re8
- 2.Qc2#
- 1...Rxe3!
- 1...Rxd4
- 1.Qg7?
- 1...Kxd5
- 2.Qg5#
- 1...Rxe3
- 2.Qxa7#
- 1...Rxd4
- 2.Qxd4#
- 2.Qxa7#
- 2.Qc7#
- 2.exd4#
- 1...Rf4
- 2.Se6#
- 2.Qxa7#
- 2.Qc7#
- 1...Rg4
- 2.Se6#
- 2.Qxa7#
- 2.Qc7#
- 1...Rh4
- 2.Se6#
- 2.Qxa7#
- 2.Qc7#
- 1...Re5
- 2.Qxa7#
- 2.Qc7#
- 1...Re6
- 2.Sxe6#
- 2.Qxa7#
- 2.Qc7#
- 1...Re8
- 2.Qxa7#
- 2.Qc7#
- 1...Re7!
- 1...Kxd5
- 1.Qe7?
- Keys
- 1.Qg1!
- 1...Kxd5
- 2.Qg5#
- 1...Rxe3
- 2.Se6#
- 1...Rxd4
- 2.exd4#
- 1...Rf4
- 2.Se6#
- 2.Qc1#
- 1...Rg4
- 2.Se6#
- 2.Qc1#
- 1...Rh4
- 2.Se6#
- 2.Qc1#
- 1...Re5
- 2.Qc1#
- 1...Re6
- 2.Sxe6#
- 2.Qc1#
- 1...Re7
- 2.Qc1#
- 1...Re8
- 2.Qc1#
- 1...Kxd5
- 1.Qg1!
This anticipates 194052(1917)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 4
- Sets
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::S(D),XR(a)
- Tries
- Try
- Q(G);P_PINP(d)
- Vars
- K(b);N_SPINP(d),OGATEB,P-FLIGHT,P_SPINR(a),XP(F)::QAR(G)
- R(a);XP(B)::QAB(G),XP(e)
- Refutation
- R(a);N_SPINP(d),XQ(G)
- Try
- Q(G);
- Vars
- R(a);XS(D)::QAR(G)
- R(a);OGATE::QAR(G)
- Refutation
- R(a);XP(B)
- Try
- Q(G);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINR(a),XP(F)::QAR(G)
- R(a);XP(B)::QAB(G),XP(e)
- Refutation
- R(a);
- Try
- Actual
- Q(G);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINR(a),XP(F)::QAR(G)
- R(a);N_GUARD,XP(B)::S(D)
- R(a);OGATE,XS(D)::P(B),XR(a)
- R(a);::QAR(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).