MESON Chess Problem Database
Problem Display
PID: 101741 (1K1R4/1p6/b7/1p2p1p1/4kB1N/5r1P/5Pnr/2Q4B w - - 0 1)
Bouchez, Laurent
Bouttoille, Laetitia
diagrammes, 1990
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxf2
- 2.Qe3#
- 1...Re3
- 2.Qxe3#
- 1...Rxf4
- 2.Qe3#
- 2.Qb1#
- 2.Qe1#
- 2.Qc2#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sxf4
- 2.Bxf3#
- 2.Qe3#
- 1...Rxf2
- Tries
- 1.Qb1+?
- 1...Kxf4
- 2.Sg6#
- 2.Rf8#
- 2.Qf5#
- 1...Rd3!
- 1...Kxf4
- 1.Qe1+?
- 1...Kxf4
- 2.Rf8#
- 1...Re3
- 2.Qb4#
- 2.Qxe3#
- 1...Se3
- 2.Qxe3#
- 1...Sxe1!
- 1...Kxf4
- 1.Qc2+?
- 1...Kxf4
- 2.Sg6#
- 2.Rf8#
- 2.Qf5#
- 1...Rd3!
- 1...Kxf4
- 1.Qc3?
- threat
- 2.Qb4#
- 2.Qxe5#
- 2.Qxf3#
- 1...Kxf4
- 2.Qxf3#
- 1...Rhxh3
- 2.Qb4#
- 2.Qxe5#
- 1...Rxf2
- 2.Qb4#
- 2.Qxe5#
- 2.Qe3#
- 1...Rfxh3
- 2.Qb4#
- 2.Qxe5#
- 1...Rxf4
- 2.Qe1#
- 2.Qb4#
- 2.Qc2#
- 2.Qd3#
- 2.Qe3#
- 1...Sxf4
- 2.Bxf3#
- 2.Qb4#
- 2.Qe3#
- 2.Qxf3#
- 1...Sxh4
- 2.Qxe5#
- 1...exf4
- 2.Qd4#
- 1...gxf4
- 2.Qb4#
- 2.Qxf3#
- 1...gxh4
- 2.Qxe5#
- 1...Rd3
- 2.Qxe5#
- 1...Re3
- 2.Qb4#
- 2.Qxe5#
- 2.Qxe3#
- 1...Rg3
- 2.Qb4#
- 2.Qxe5#
- 1...Se1
- 2.Qb4#
- 2.Qxe5#
- 2.Qe3#
- 1...Se3
- 2.Qxe5#
- 2.Qxe3#
- 1...b4
- 2.Qxe5#
- 2.Qxf3#
- 1...g4
- 2.Qb4#
- 2.Qxe5#
- 1...Rxc3!
- threat
- 1.Qc5?
- threat
- 2.Qb4#
- 2.Qxe5#
- 1...Rxf4
- 2.Qe3#
- 2.Qb4#
- 2.Qc2#
- 2.Qd5#
- 1...Sxf4
- 2.Bxf3#
- 2.Qe3#
- 2.Qb4#
- 1...Sxh4
- 2.Qxe5#
- 1...exf4
- 2.Rd4#
- 2.Qd4#
- 2.Qe7#
- 2.Qd5#
- 2.Qf5#
- 1...gxf4
- 2.Qb4#
- 2.Qd5#
- 1...gxh4
- 2.Qxe5#
- 1...Rd3
- 2.Qxe5#
- 1...Rb3
- 2.Qxe5#
- 1...Rc3
- 2.Qxe5#
- 1...Se3
- 2.Qxe3#
- 2.Qxe5#
- 1...b4
- 2.Qxe5#
- 1...Kxf4!
- threat
- 1.Qc6+?
- 1...Kxf4
- 2.Rf8#
- 2.Qxf3#
- 1...bxc6!
- 1...Kxf4
- 1.Qb1+?
- Keys
- 1.Qc7!
- threat
- 2.Qxe5#
- 1...Kxf4
- 2.Rd4#
- 1...Rxf4
- 2.Qc2#
- 1...Sxf4
- 2.Bxf3#
- 1...exf4
- 2.Qe7#
- 1...gxf4
- 2.Qh7#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- R(c);N_GUARD,P_SPINS(a),XP(C)::QAR1(A)
- R(c);N_GUARD,P_SPINS(a)::QAR1(A),XR(c)
- S(a);N_GUARD,P_SPINR(c)::QAR1(A)
- S(a);N_GUARD,P_SPINR(c)::QAR1(A),XS(a)
- Tries
- Try
- Q(A);CHECK
- Refutation
- R(c);P_SPINR(c),P_SPINS(a)
- Try
- Q(A);CHECK
- Vars
- K(d);P-FLIGHT,XB(E)::R(H)
- S(a);N_GUARD,P_SPINR(c),P_SPINS(a)::QAR1(A),XS(a)
- Refutation
- S(a);P_SPINR(c),XQ(A)
- Try
- Q(A);CHECK
- Refutation
- R(c);P_SPINR(c),P_SPINS(a)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- K(d);P-FLIGHT,XB(E)::QAR1(A),XR(c)
- S(a);P_SPINR(c),XS(F)::QAR1(A),XP(f)
- P(f);N_GUARD,SBLOCK,XB(E)::QAR1(A)
- P(g);XS(F)::QAR1(A),XP(f)
- R(c);P_SPINS(a)::QAR1(A),XP(f)
- Refutation
- R(c);P_SPINS(a),XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(a);P_SPINR(c),XS(F)::QAR1(A),XP(f)
- P(g);XS(F)::QAR1(A),XP(f)
- R(c);P_SPINS(a)::QAR1(A),XP(f)
- P(e);::QAR1(A),XP(f)
- Refutation
- K(d);P-FLIGHT,XB(E)
- Try
- Q(A);CHECK
- Refutation
- P(i);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAR1(A),XP(f)
- Vars
- K(d);P-FLIGHT,P_SPINP(f),XB(E)::R(H)
- R(c);N_GUARD,P_SPINS(a),SBLOCK,XB(E)::QAB(A)
- S(a);OGATE,P_SPINR(c),SBLOCK,XB(E)::B(B),XR(c)
- P(f);OGATEB,SBLOCK,XB(E)::QAR(A)
- P(g);SBLOCK,XB(E)::QAB(A)
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).