MESON Chess Problem Database
Problem Display
PID: 93765 (7B/n1N3q1/8/3Pb3/1p2P2n/1pk3NQ/1p1RB3/1b1R3K w - - 0 1)
Khairabedyan, Krikor
Sachove umeni (Ceskoslovensky sach), 1954
#2
10 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qh6
- 2.Bxe5#
- 1...Qf8
- 2.Bxe5#
- 1...Qxg3
- 2.Bxe5#
- 1...Qg4
- 2.Bxe5#
- 1...Qg6
- 2.Bxe5#
- 1...Qd7
- 2.Bxe5#
- 1...Qf7
- 2.Bxe5#
- 1...Qh7
- 2.Bxe5#
- 1...Qg8
- 2.Bxe5#
- 1...Bxe4+
- 2.Sxe4#
- 1...Bxg3
- 2.Bxg7#
- 1...Sb5
- 2.Sxb5#
- 1...Sc6
- 2.Sb5#
- 1...Sc8
- 2.Sb5#
- 1...Qh6
- Tries
- 1.Sf1+?
- 1...Qg3
- 2.Bxe5#
- 1...Bd3
- 2.Qxd3#
- 1...Bg3
- 2.Bxg7#
- 1...Sf3!
- 1...Qg3
- 1.Sf5+?
- 1...Qg3
- 2.Bxe5#
- 1...Bd3
- 2.Qxd3#
- 1...Bg3
- 2.Bxg7#
- 1...Sf3!
- 1...Qg3
- 1.Sh5+?
- 1...Qg3
- 2.Bxe5#
- 1...Bd3
- 2.Qxd3#
- 1...Bg3
- 2.Bxg7#
- 1...Sf3!
- 1...Qg3
- 1.Bb5?
- threat
- 2.Se2#
- 1...Bxe4+
- 2.Sxe4#
- 1...Qxg3
- 2.Bxe5#
- 1...Bxg3
- 2.Bxg7#
- 1...Sxb5!
- threat
- 1.Ba6?
- threat
- 2.Se2#
- 1...Bxe4+
- 2.Sxe4#
- 1...Qxg3
- 2.Bxe5#
- 1...Bxg3
- 2.Bxg7#
- 1...Sb5!
- threat
- 1.d6?
- threat
- 2.Sd5#
- 1...Bxe4+
- 2.Sxe4#
- 1...Qxc7
- 2.Bxe5#
- 1...Qf7
- 2.Bxe5#
- 1...Qg8
- 2.Bxe5#
- 1...Bd3!
- threat
- 1.Sf1+?
- Keys
- 1.Qc8!
- threat
- 2.Sb5#
- 1...Bxe4+
- 2.Sxe4#
- 1...Qxc7
- 2.Bxe5#
- 1...Bxc7
- 2.Bxg7#
- 1...Sb5
- 2.Sxb5#
- threat
- 1.Qc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(i);OGATE,P_SPINB(g)::B(J),XB(g)
- Q(i);OGATE,P_SPINB(g),P_SPINQ(i),XS(E)::B(J),XB(g)
- B(a);CHECK,XP(G)::QAR(F)+S(E),DCHECK,XB(a)
- B(g);OGATEB,P_SPINB(g),P_SPINQ(i),XS(E)::B(J),XQ(i)
- S(h);N_GUARD::S(I),XS(h)
- S(h);N_GUARD::S(I)
- Tries
- Try
- S(E);CHECK
- Vars
- Q(i);OGATE,P_SPINB(g),P_SPINQ(i)::B(J),XB(g)
- B(a);N_GUARD,P_SPINB(a)::QAR1(F),XB(a)
- B(g);P_SPINB(g),P_SPINQ(i),S_CUTB(a),S_CUTS(f)::B(J),XQ(i)
- Refutation
- S(f);P_SPINS(f)
- Try
- S(E);CHECK
- Vars
- Q(i);OGATE,P_SPINB(g),P_SPINQ(i)::B(J),XB(g)
- B(a);N_GUARD,P_SPINB(a)::QAR1(F),XB(a)
- B(g);P_SPINB(g),P_SPINQ(i),S_CUTB(a),S_CUTS(f)::B(J),XQ(i)
- Refutation
- S(f);P_SPINS(f)
- Try
- S(E);CHECK
- Vars
- Q(i);OGATE,P_SPINB(g),P_SPINQ(i)::B(J),XB(g)
- B(a);N_GUARD,P_SPINB(a)::QAR1(F),XB(a)
- B(g);P_SPINB(g),P_SPINQ(i),S_CUTB(a),S_CUTS(f)::B(J),XQ(i)
- Refutation
- S(f);P_SPINS(f)
- Try
- B(D);
- Threat
- QAR(F)+S(E),DCHECK
- Vars
- B(a);CHECK,XP(G)::QAR(F)+S(E),DCHECK,XB(a)
- Q(i);OGATE,P_SPINB(g),P_SPINQ(i),XS(E)::B(J),XB(g)
- B(g);OGATEB,P_SPINB(g),P_SPINQ(i),XS(E)::B(J),XQ(i)
- Refutation
- S(h);XB(D)
- Try
- B(D);
- Threat
- QAR(F)+S(E),DCHECK
- Vars
- B(a);CHECK,XP(G)::QAR(F)+S(E),DCHECK,XB(a)
- Q(i);OGATE,P_SPINB(g),P_SPINQ(i),XS(E)::B(J),XB(g)
- B(g);OGATEB,P_SPINB(g),P_SPINQ(i),XS(E)::B(J),XQ(i)
- Refutation
- S(h);
- Try
- P(H);
- Threat
- S(I)
- Vars
- B(a);CHECK,XP(G)::QAR(F)+S(E),DCHECK,XB(a)
- Q(i);OGATE,P_SPINB(g),XS(I)::B(J),XB(g)
- Q(i);OGATE,P_SPINB(g)::B(J),XB(g)
- Refutation
- B(a);
- Try
- Actual
- Q(F);
- Threat
- QAR(F)+S(I),DCHECK
- Vars
- B(a);CHECK,XP(G)::S(E),XB(a)
- Q(i);OGATE,P_SPINB(g),P_SPINQ(i),XS(I)::B(J),XB(g)
- B(g);OGATEB,P_SPINB(g),P_SPINQ(i),XS(I)::B(J),XQ(i)
- S(h);::QAR(F)+S(I),DCHECK,XS(h)
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).