MESON Chess Problem Database
Problem Display
PID: 235583 (8/6Rr/1N2P1p1/1Pk3q1/K1Np3B/p7/8/3Q4 w - - 0 1)
Borovik, Boris V
Schweizerische Schachzeitung, 1988
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Be7#
- 1...Qd2
- 2.Be7#
- 1...Qe3
- 2.Be7#
- 1...Qh6
- 2.Be7#
- 1...Qe7
- 2.Bxe7#
- 1...Qg1
- 2.Be7#
- 1...Qg2
- 2.Be7#
- 1...Qg4
- 2.Be7#
- 1...Qf5
- 2.Be7#
- 1...Qh5
- 2.Be7#
- 1...Rxh4
- 2.Rc7#
- 1...Rh5
- 2.Rc7#
- 1...Rh6
- 2.Rc7#
- 1...Rh8
- 2.Rc7#
- 1...Qc1
- Tries
- 1.Sd7+?
- 1...Kxc4
- 2.Qb3#
- 1...Kd5!
- 1...Kxc4
- 1.Bxg5?
- threat
- 2.Be7#
- 1...d3
- 2.Be3#
- 2.Qg1#
- 1...Rxg7!
- threat
- 1.Qb3?
- threat
- 2.Qxa3#
- 2.Qb4#
- 1...Qd2
- 2.Be7#
- 1...Qc1
- 2.Be7#
- 2.Qb4#
- 1...Qe3
- 2.Be7#
- 2.Qb4#
- 1...Qg3
- 2.Qb4#
- 1...a2
- 2.Qa3#
- 2.Qb4#
- 1...d3!
- threat
- 1.Qf3?
- threat
- 2.Qc6#
- 2.Qxa3#
- 1...Qd2
- 2.Be7#
- 2.Qd5#
- 2.Qc6#
- 2.Qf8#
- 1...Qc1
- 2.Be7#
- 2.Qd5#
- 2.Qc6#
- 2.Qf8#
- 1...Qe3
- 2.Be7#
- 2.Qd5#
- 2.Qc6#
- 2.Qf8#
- 1...Qg2
- 2.Be7#
- 2.Qxa3#
- 2.Qf8#
- 1...Qg3
- 2.Qd5#
- 2.Qc6#
- 1...Qd5
- 2.Qxd5#
- 2.Qxa3#
- 1...a2
- 2.Qc6#
- 2.Qa3#
- 1...d3!
- threat
- 1.Qb1?
- threat
- 2.Qb4#
- 1...Qd2
- 2.Be7#
- 1...d3!
- threat
- 1.Qe1?
- threat
- 2.Qb4#
- 1...Qd2
- 2.Be7#
- 2.Qe5#
- 1...d3!
- threat
- 1.Qh1?
- threat
- 2.Qc6#
- 1...Qg2
- 2.Be7#
- 1...Qd5
- 2.Qxd5#
- 1...d3!
- threat
- 1.Qd2?
- threat
- 2.Qb4#
- 2.Qxg5#
- 1...Qxd2
- 2.Be7#
- 1...Qxh4
- 2.Qb4#
- 1...Qf4
- 2.Qb4#
- 1...Qe3
- 2.Be7#
- 2.Qb4#
- 1...Qf6
- 2.Qb4#
- 1...Qh6
- 2.Be7#
- 2.Qb4#
- 1...Qe7
- 2.Bxe7#
- 2.Qb4#
- 1...Qd8
- 2.Qb4#
- 1...Qg1
- 2.Be7#
- 2.Qb4#
- 1...Qg2
- 2.Be7#
- 2.Qb4#
- 1...Qg3
- 2.Qb4#
- 1...Qg4
- 2.Be7#
- 2.Qb4#
- 1...Qd5
- 2.Qb4#
- 1...Qe5
- 2.Qb4#
- 1...Qf5
- 2.Be7#
- 2.Qb4#
- 1...Qh5
- 2.Be7#
- 2.Qb4#
- 1...Rh5
- 2.Rc7#
- 2.Qb4#
- 1...d3!
- threat
- 1.Qd3?
- threat
- 2.Qxa3#
- 1...Qc1
- 2.Be7#
- 1...Qd2
- 2.Be7#
- 1...Qe3
- 2.Be7#
- 1...a2
- 2.Qa3#
- 1...Qg3!
- threat
- 1.Sd7+?
- Keys
- 1.Qh5!
- threat
- 2.Qxg5#
- 1...Qxh5
- 2.Be7#
- 1...Rxh5
- 2.Rc7#
- 1...gxh5
- 2.Rxg5#
- 1...d3
- 2.Bf2#
- 1...Qd5
- 2.Be7#
- 2.Qxd5#
- 1...Qe5
- 2.Be7#
- 2.Qxe5#
- 1...Qf5
- 2.Be7#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(d);OGATE::B(D)
- Q(d);OGATE::B(D),XQ(d)
- R(f);N_GUARD,XB(D)::R(H)
- R(f);N_GUARD::R(H)
- Tries
- Try
- S(F);CHECK
- Vars
- K(c);P-FLIGHT,XS(C)::QAB1(A)
- Refutation
- K(c);P-FLIGHT,P_SPINP(b)
- Try
- B(D);XQ(d)
- Threat
- B(D)
- Refutation
- R(f);XR(H)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(d);OGATE::B(D)
- Q(d);::QAB1(A)
- Refutation
- P(b);
- Try
- Q(A);
- Threat
- DUALS(2)
- Refutation
- P(b);
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(d);OGATE::B(D)
- Refutation
- P(b);
- Try
- Q(A);
- Threat
- QAB1(A)
- Refutation
- P(b);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- Q(d);OGATE::B(D)
- Q(d);N_GUARD::QAR1(A),XQ(d)
- Refutation
- P(b);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(d);OGATE,XQ(A)::B(D)
- Q(d);XB(D)::QAB1(A)
- Q(d);::QAB1(A)
- Refutation
- P(b);
- Try
- Q(A);
- Threat
- QAB(A),XP(a)
- Vars
- Q(d);OGATE::B(D)
- P(a);::QAB(A)
- Refutation
- Q(d);
- Try
- Actual
- Q(A);P_PINQ(d)
- Threat
- QAR(A),XQ(d)
- Vars
- Q(d);N_SPINQ(d),OGATE,XQ(A)::B(D)
- R(f);N_GUARD,N_SPINQ(d),XQ(A)::R(H)
- P(e);N_SPINQ(d),OGATE,XQ(A)::R(H),XQ(d)
- P(b);OGATEB::B(D)
- Q(d);OGATE::B(D)
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).