MESON Chess Problem Database
Problem Display
PID: 133692 (3q1nR1/1p3R2/4p1P1/p1Q1BNk1/8/6NK/2B5/2b5 w - - 0 1)
Kovacevic, Marjan
6/7 Prize, Dresden Olympic Ty., 2008
#2
9 + 7
| 23 | Die Schwalbe | 2008 |
| 56 | The Problemist | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Qb6
- 2.Qe7#
- 1...Qe7
- 2.Qxe7#
- 1...Qd1
- 2.Qe7#
- 1...Qd2
- 2.Qe7#
- 1...Qd3
- 2.Qe7#
- 1...Qd4
- 2.Qe7#
- 1...Qd5
- 2.Qe7#
- 1...Qa8
- 2.Qe7#
- 1...Qb8
- 2.Qe7#
- 1...Qc8
- 2.Qe7#
- 1...Bb2
- 2.Qe3#
- 1...Ba3
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Qb6
- Tries
- 1.Se3?
- threat
- 2.Bf4#
- 1...Kh6
- 2.Bg7#
- 1...Qf6!
- threat
- 1.Sd6?
- threat
- 2.Bf4#
- 1...Kh6
- 2.Bg7#
- 1...Bf4
- 2.Bxf4#
- 1...Qf6!
- threat
- 1.Se7?
- threat
- 2.Bf4#
- 1...Kh6
- 2.Bg7#
- 1...Bf4
- 2.Bxf4#
- 1...Qd5!
- threat
- 1.Bd1?
- threat
- 2.Se4#
- 1...Qxd1
- 2.Qe7#
- 1...Qf6
- 2.Qxc1#
- 1...Qd3
- 2.Qe7#
- 1...Qd4
- 2.Qe7#
- 1...Qd5
- 2.Qe7#
- 1...exf5!
- threat
- 1.Bf4+?
- 1...Kxf4
- 2.Se7#
- 1...Bxf4!
- 1...Kxf4
- 1.Bf6+?
- 1...Kf4
- 2.Qf2#
- 1...Qxf6!
- 1...Kf4
- 1.Rh7?
- threat
- 2.Rh5#
- 1...Qd1
- 2.Qe7#
- 1...Sxh7!
- threat
- 1.Qb4?
- threat
- 2.Qg4#
- 2.Qh4#
- 1...exf5
- 2.Qh4#
- 1...Qd1
- 2.Bf6#
- 2.Qe7#
- 2.Qh4#
- 1...Qd4
- 2.Qe7#
- 1...Bf4
- 2.Bxf4#
- 2.Qxf4#
- 1...axb4!
- threat
- 1.Qd4?
- threat
- 2.Qg4#
- 2.Qh4#
- 2.Qxd8#
- 1...exf5
- 2.Qh4#
- 1...Qf6
- 2.Bxf6#
- 2.Qg4#
- 2.Qh4#
- 1...Qb6
- 2.Bf6#
- 2.Qg4#
- 2.Qh4#
- 1...Qc7
- 2.Bf6#
- 2.Qg4#
- 2.Qh4#
- 1...Qe7
- 2.Qg4#
- 2.Qh4#
- 1...Qd5
- 2.Bf6#
- 2.Qg4#
- 2.Qh4#
- 1...Qd6
- 2.Bf6#
- 2.Qg4#
- 2.Qh4#
- 1...Qd7
- 2.Bf6#
- 2.Qg4#
- 2.Qh4#
- 1...Qa8
- 2.Bf6#
- 2.Qg4#
- 2.Qh4#
- 1...Qb8
- 2.Bf6#
- 2.Qg4#
- 2.Qh4#
- 1...Qc8
- 2.Bf6#
- 2.Qg4#
- 2.Qh4#
- 1...Qe8
- 2.Bf6#
- 2.Qg4#
- 2.Qh4#
- 1...Ba3
- 2.Bf4#
- 2.Qe3#
- 2.Qf4#
- 2.Qg4#
- 2.Qh4#
- 1...Bf4
- 2.Bxf4#
- 2.Qxf4#
- 2.Qxd8#
- 1...Sd7
- 2.Qg4#
- 2.Qh4#
- 1...Sh7
- 2.Qg4#
- 2.Qh4#
- 1...Qxd4!
- threat
- 1.Qxf8?
- threat
- 2.Qh6#
- 2.Qxd8#
- 1...exf5
- 2.Rxf5#
- 1...Qf6
- 2.Qh6#
- 1...Qb6
- 2.Qh6#
- 2.Qe7#
- 1...Qc7
- 2.Qh6#
- 1...Qe7
- 2.Qh6#
- 2.Qxe7#
- 1...Qd1
- 2.Qh6#
- 2.Qe7#
- 1...Qd2
- 2.Qh6#
- 2.Qe7#
- 1...Qd3
- 2.Qh6#
- 2.Qe7#
- 1...Qd4
- 2.Qh6#
- 2.Qe7#
- 1...Qd5
- 2.Qh6#
- 2.Qe7#
- 1...Qd6
- 2.Qh6#
- 1...Qd7
- 2.Qh6#
- 1...Qa8
- 2.Qh6#
- 2.Qe7#
- 1...Qb8
- 2.Qh6#
- 2.Qe7#
- 1...Qc8
- 2.Qh6#
- 2.Qe7#
- 1...Qe8
- 2.Qh6#
- 1...Ba3
- 2.Qh6#
- 1...Qxf8!
- threat
- 1.Qc4?
- threat
- 2.Qg4#
- 2.Qh4#
- 1...exf5
- 2.Qh4#
- 1...Qd1
- 2.Bf6#
- 2.Qh4#
- 1...Bf4
- 2.Bxf4#
- 2.Qxf4#
- 1...Qd4!
- threat
- 1.Se3?
- Keys
- 1.Bg7!
- threat
- 2.Bh6#
- 1...Kf4
- 2.Se7#
- 1...Kxg6
- 2.Sd6#
- 1...exf5
- 2.Qxf5#
- threat
- 1.Bg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 13
- Sets
- Q(f);N_GUARD::QAB(D)
- Q(f);N_GUARD::QAB(D),XQ(f)
- Q(f);N_GUARD,P_PINS(B)::QAB(D)
- B(a);N_GUARD::QAB(D)
- B(a);N_GUARD::QAB(D),XB(a)
- Tries
- Try
- S(F);
- Threat
- QAR(D)+B(E),DCHECK
- Vars
- K(c);S_FLIGHT::B(E)
- Refutation
- Q(f);
- Try
- S(F);
- Threat
- QAR(D)+B(E),DCHECK
- Vars
- K(c);S_FLIGHT::B(E)
- B(a);::QAR(D)+B(E),DCHECK,XB(a)
- Refutation
- Q(f);
- Try
- S(F);
- Threat
- QAR(D)+B(E),DCHECK
- Vars
- K(c);S_FLIGHT::B(E)
- B(a);::QAR(D)+B(E),DCHECK,XB(a)
- Refutation
- Q(f);
- Try
- B(A);
- Threat
- S(B)
- Vars
- Q(f);N_GUARD,XB(A)::QAB(D)
- Q(f);N_GUARD::QAB(D),XB(a)
- Q(f);N_GUARD,P_PINS(B)::QAB(D)
- Q(f);N_GUARD::QAB(D)
- Refutation
- P(d);XS(F)
- Try
- B(E);CHECK
- Vars
- K(c);S_FLIGHT,XB(E)::R(H)+S(F)
- Refutation
- B(a);XB(E)
- Try
- B(E);CHECK
- Vars
- K(c);S_FLIGHT::QAR2(D)
- Refutation
- Q(f);XB(E)
- Try
- R(H);
- Threat
- R1(H)
- Vars
- Q(f);N_GUARD::QAB(D)
- Refutation
- S(g);XR(H)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(d);XS(F)::QAB1(D)
- Q(f);N_GUARD::QAB(D)
- Refutation
- P(b);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- P(d);XS(F)::QAB1(D)
- Refutation
- Q(f);XQ(D)
- Try
- Q(D);XS(g)
- Threat
- DUALS(2)
- Vars
- P(d);OGATE,XS(F)::R1(H),XP(d)
- Q(f);::QAB1(D)
- B(a);::QAB1(D)
- Refutation
- Q(f);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(d);XS(F)::QAB1(D)
- Refutation
- Q(f);
- Try
- Actual
- B(E);
- Threat
- B(E)
- Vars
- K(c);S_FLIGHT::R(H)+S(F)
- K(c);P-FLIGHT,XP(G)::B(A)+S(F)
- P(d);OGATE,P_SPINP(d),XS(F)::QAR1(D),XP(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).