MESON Chess Problem Database
Problem Display
PID: 86864 (4R3/3pN3/5p2/1p1P1P2/1Qpk4/3B2P1/4PN2/5K2 w - - 0 1)
Davidenko, Fedor Vasilevich
UV CSTV, 1979
#2
10 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ke3
- 2.Sc6#
- 1...Ke3
- Tries
- 1.Se4?
- 1...Ke3
- 2.Qc5#
- 1...Ke5
- 2.Qc3#
- 1...d6!
- 1...Ke3
- 1.Sc6+?
- 1...Kxd5
- 2.Be4#
- 1...dxc6!
- 1...Kxd5
- 1.Sc8?
- 1...Kxd5
- 2.Qd6#
- 1...d6!
- 1...Kxd5
- 1.Be4?
- 1...Ke3
- 2.Qc3#
- 1...Ke5
- 2.Sc6#
- 1...d6!
- 1...Ke3
- 1.Qxc4+?
- 1...Ke3
- 2.Qf4#
- 1...Ke5
- 2.Sc8#
- 2.Qf4#
- 1...bxc4!
- 1...Ke3
- 1.e3+?
- 1...Ke5
- 2.Sg4#
- 1...Kxe3!
- 1...Ke5
- 1.Se4?
- Keys
- 1.d6!
- 1...Ke3
- 2.Sc6#
- 1...Ke5
- 2.Qc5#
- 1...Ke3
- 1.d6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(b);N_SPINP(a),S_FLIGHT::R(J)+S(I)
- Tries
- Try
- S(C);
- Vars
- K(b);N_SPINP(a),S_FLIGHT::QAB(F)
- Refutation
- P(e);
- Try
- S(I);CHECK
- Vars
- K(b);N_SPINP(a),P-FLIGHT,XP(G)::B(D)
- Refutation
- P(e);XS(I)
- Try
- S(I);
- Vars
- K(b);N_SPINP(a),OGATEB,P-FLIGHT,XP(G)::QAR1(F)
- Refutation
- P(e);
- Try
- B(D);
- Vars
- K(b);N_SPINP(a),S_FLIGHT::QAR2(F)
- K(b);N_SPINP(a),S_FLIGHT::R(J)+S(I),DCHECK
- Refutation
- P(e);
- Try
- Q(F);CHECK,XP(a)
- Vars
- K(b);OGATE,S_FLIGHT::QAB1(F)
- Refutation
- P(c);XQ(F)
- Try
- P(B);CHECK
- Vars
- K(b);N_SPINP(a),S_FLIGHT::S(C)
- Refutation
- K(b);N_SPINP(a),S_FLIGHT,XP(B)
- Try
- Actual
- P(G);
- Vars
- K(b);N_SPINP(a),S_FLIGHT::R(J)+S(I)
- K(b);N_SPINP(a),S_FLIGHT::QAR2(F)
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).