MESON Chess Problem Database
Problem Display
PID: 99215 (B7/1R2N3/4bp2/1q3p2/4kP2/3Np3/1B4PK/r1RQ4 w - - 0 1)
Kirchner, Imre
Magyar Sakkelet, 1978
#2
10 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxd3
- 2.Rb4#
- 2.Qf3#
- 1...Qa4
- 2.Rb4#
- 1...Qa6
- 2.Rb4#
- 1...Qd7
- 2.Rb4#
- 1...Qe8
- 2.Rb4#
- 1...Qxb2
- 2.Rb4#
- 1...Qb3
- 2.Rb4#
- 1...Qb4
- 2.Rxb4#
- 1...Qa5
- 2.Rb4#
- 1...Qc5
- 2.Rb4#
- 1...Qd5
- 2.Rb4#
- 1...Qe5
- 2.Rb4#
- 1...e2
- 2.Qxe2#
- 1...Qxd3
- Tries
- 1.Se1?
- threat
- 2.Qf3#
- 2.Qd4#
- 1...Qxb2
- 2.Rb4#
- 1...e2
- 2.Qd4#
- 1...Qf1
- 2.Rb4#
- 2.Qd4#
- 1...Qe2
- 2.Rb4#
- 2.Qd4#
- 1...Qd3
- 2.Rb4#
- 2.Qf3#
- 1...Qa4
- 2.Rb4#
- 2.Qf3#
- 1...Qc4
- 2.Qf3#
- 1...Qd7
- 2.Rb4#
- 2.Qf3#
- 1...Qb4
- 2.Rxb4#
- 2.Qf3#
- 1...Qc5
- 2.Rb4#
- 2.Qf3#
- 1...Qd5
- 2.Rb4#
- 2.Qf3#
- 1...Qe5
- 2.Rb4#
- 2.Qf3#
- 1...Qb6
- 2.Qf3#
- 1...Ra4
- 2.Qf3#
- 1...Kxf4!
- threat
- 1.Sf2+?
- 1...exf2
- 2.Qf3#
- 2.Qd4#
- 1...Kxf4!
- 1...exf2
- 1.Sb4?
- threat
- 2.Qf3#
- 2.Qd4#
- 1...Qxb4
- 2.Rxb4#
- 1...e2
- 2.Qd4#
- 1...Qf1
- 2.Qd4#
- 1...Qe2
- 2.Qd4#
- 1...Qd3
- 2.Qf3#
- 1...Qc4
- 2.Qf3#
- 1...Qd7
- 2.Qf3#
- 1...Qc5
- 2.Qf3#
- 1...Qd5
- 2.Qf3#
- 1...Qe5
- 2.Qf3#
- 1...Qb6
- 2.Qf3#
- 1...Kxf4!
- threat
- 1.Sc5+?
- 1...Qxc5
- 2.Rb4#
- 1...Kxf4!
- 1...Qxc5
- 1.Sg8?
- threat
- 2.Sxf6#
- 1...Kd5
- 2.Rd7#
- 1...Qxd3
- 2.Rb4#
- 2.Qf3#
- 1...Qxb2
- 2.Rb4#
- 1...Bxg8
- 2.Re7#
- 1...Qe5
- 2.Rb4#
- 1...e2!
- threat
- 1.Rxb5+?
- 1...Bd5
- 2.Bxd5#
- 2.Rc4#
- 2.Rb4#
- 1...Rxa8!
- 1...Bd5
- 1.Rd7+?
- 1...Qc6
- 2.Rd4#
- 2.Qf3#
- 1...Qd5
- 2.Rc4#
- 1...Qb7
- 2.Rd4#
- 2.Qf3#
- 1...Rxa8
- 2.Rd4#
- 2.Qf3#
- 1...Bd5!
- 1...Qc6
- 1.Se1?
- Keys
- 1.Sd5!
- threat
- 2.Sxf6#
- 1...Kxd5
- 2.Rd7#
- 1...Qxd3
- 2.Qf3#
- 1...Qxb2
- 2.Sc5#
- 1...Qxd5
- 2.Rb4#
- 1...Bxd5
- 2.Re7#
- 1...e2
- 2.Sf2#
- threat
- 1.Sd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- Q(d);OGATE::B(J)+R(H),DCHECK
- Q(d);OGATE,P_PINP(D),XB(C)::B(J)+R(H),DCHECK
- Q(d);OGATE::B(J)+R(H),DCHECK,XQ(d)
- Q(d);OGATE::R(H)
- Q(d);OGATE,P_PINP(G)::B(J)+R(H),DCHECK
- P(b);OGATEB::QAR2(B),XP(b)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(d);OGATE,P_PINP(D),XB(C)::B(J)+R(H),DCHECK
- P(b);::QAR1(B)
- Q(d);::QAB1(B)
- R(a);::QAB1(B)
- Refutation
- K(c);P-FLIGHT,XP(G)
- Try
- S(F);CHECK
- Refutation
- K(c);P-FLIGHT,XP(G)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(d);OGATE,XS(F)::B(J)+R(H),DCHECK,XQ(d)
- P(b);::QAR1(B)
- Q(d);::QAR1(B)
- Q(d);P_PINP(D)::QAR1(B)
- Q(d);::QAB1(B)
- Q(d);P_PINP(G)::QAB1(B)
- Refutation
- K(c);P-FLIGHT,XP(G)
- Try
- S(F);CHECK
- Vars
- Q(d);OGATE,XS(F)::B(J)+R(H),DCHECK
- Refutation
- K(c);P-FLIGHT,XP(G)
- Try
- S(I);
- Threat
- S(I),XP(g)
- Vars
- K(c);S_FLIGHT::B(J)+R(H),DCHECK
- Q(d);OGATE,P_PINP(D),XB(C)::B(J)+R(H),DCHECK
- B(f);XS(I)::B(J)+R(H),DCHECK
- Q(d);OGATE,P_PINP(G)::B(J)+R(H),DCHECK
- Refutation
- P(b);
- Try
- R(H);CHECK,XQ(d)
- Refutation
- R(a);XB(J)
- Try
- R(H);CHECK
- Vars
- Q(d);P_SPINQ(d)::R(A)
- Refutation
- B(f);P_SPINB(f)
- Try
- Actual
- S(I);
- Threat
- S(I),XP(g)
- Vars
- K(c);OGATEB,S_FLIGHT,XS(I)::B(J)+R(H),DCHECK
- Q(d);SBLOCK,XS(F)::QAB1(B)
- Q(d);N_GUARD,P_PINP(D),XB(C)::S(F)
- Q(d);OGATE,XS(I)::R(H)
- B(f);OGATEB,XS(I)::R(H)
- P(b);N_GUARD::S(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).