MESON Chess Problem Database
Problem Display
PID: 59367 (8/8/B7/B1pKN1n1/4pp2/1P2kP1n/Q1P2pRr/8 w - - 0 1)
Cheylan, Yves
Troll, 2000
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Sxf3
- 2.Sg4#
- 1...f1Q
- 2.Bd2#
- 1...f1B
- 2.Bd2#
- 1...f1R
- 2.Bd2#
- 1...exf3
- 2.Sg4#
- 1...Sxf3
- Tries
- 1.Qa1?
- threat
- 2.Qc3#
- 2.Qc1#
- 1...Sxf3
- 2.Sg4#
- 2.Qc3#
- 1...f1Q
- 2.Bd2#
- 1...f1S
- 2.Qc3#
- 2.Qe1#
- 1...f1B
- 2.Bd2#
- 2.Qc1#
- 1...f1R
- 2.Bd2#
- 2.Qc3#
- 1...Rh1
- 2.Qc3#
- 1...c4!
- threat
- 1.Qb2?
- threat
- 2.Qc1#
- 2.Qc3#
- 1...Sxf3
- 2.Sg4#
- 2.Qc3#
- 1...f1Q
- 2.Bd2#
- 1...f1S
- 2.Qc3#
- 1...f1B
- 2.Bd2#
- 2.Qc1#
- 1...f1R
- 2.Bd2#
- 2.Qc3#
- 1...Rh1
- 2.Qc3#
- 1...c4!
- threat
- 1.Qa3?
- threat
- 2.Qc1#
- 2.Qxc5#
- 1...Sxf3
- 2.Sg4#
- 1...f1Q
- 2.Bd2#
- 2.Qxc5#
- 1...f1S
- 2.Qxc5#
- 2.b4#
- 1...f1R
- 2.Bd2#
- 2.Qxc5#
- 2.b4#
- 1...Rh1
- 2.Qxc5#
- 1...Se6
- 2.Qc1#
- 1...c4!
- threat
- 1.c4?
- threat
- 2.Qd2#
- 1...f1S
- 2.Qe2#
- 1...Sxf3!
- threat
- 1.Qa1?
- Keys
- 1.c3!
- threat
- 2.Qe2#
- 1...exf3
- 2.Sg4#
- 1...f1Q
- 2.Qd2#
- 1...f1B
- 2.Qd2#
- 1...Sg1
- 2.Qxf2#
- 1...c4
- 2.Bb6#
- threat
- 1.c3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- S(h);SBLOCK,XP(E)::S(H)
- P(a);::B(F)
- P(e);SBLOCK,XP(E)::S(H)
- Tries
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(a);::B(F)
- R(b);::QAR2(A)
- Refutation
- P(g);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(a);::B(F)
- P(a);::QAR2(A)
- R(b);::QAR2(A)
- Refutation
- P(g);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(h);SBLOCK,XP(E)::S(H)
- R(b);::QAB(A),XP(g)
- S(h);::QAB(A)
- Refutation
- P(g);
- Try
- P(B);
- Threat
- QAB1(A)
- Vars
- P(a);::QAR1(A)
- Refutation
- S(h);XP(E)
- Try
- Actual
- P(B);
- Threat
- QAR1(A)
- Vars
- P(e);SBLOCK,XP(E)::S(H)
- P(a);::QAB1(A)
- S(d);N_GUARD::QAB1(A),XP(a)
- P(g);OGATEB::B(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).