MESON Chess Problem Database
Problem Display
PID: 124290 (b7/BB6/4p3/K1N4q/QN1k4/8/P2bRn2/2R5 w - - 0 1)
Kovacevic, Marjan
1st Prize, Serbian Championship, 2003-2006
#2
9 + 6
| 6490 | yacpdb | 2009 |
| 133 | The Problemist Supplement | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qxe2
- 2.Sd3#
- 2.Sd7#
- 1...Qf3
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 1...Qg4
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 2.Qd7#
- 1...Qg6
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 2.Qd7#
- 1...Qf7
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 1...Qe8
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 1...Qh1
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 1...Qh2
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 1...Qh3
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 2.Qd7#
- 1...Qh4
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 2.Qd7#
- 1...Qxc5+
- 2.Bxc5#
- 1...Qh6
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 2.Qd7#
- 1...Qh7
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 1...Qh8
- 2.Sb3#
- 2.Sd3#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 2.Qd7#
- 1...Bxc1
- 2.Sd5#
- 1...Be3
- 2.Sd3#
- 1...Bxb4+
- 2.Qxb4#
- 1...Bf4
- 2.Sd3#
- 2.Sd5#
- 2.Sa6#
- 1...Bg5
- 2.Sbd3#
- 2.Sd5#
- 2.Sba6#
- 2.Sb3#
- 2.Scd3#
- 2.Sca6#
- 2.Sxe6#
- 2.Sd7#
- 2.Qd7#
- 1...Bh6
- 2.Sd3#
- 2.Sd5#
- 2.Sa6#
- 1...Sd1
- 2.Re4#
- 1...Sh1
- 2.Re4#
- 1...Sd3
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Re4#
- 1...e5
- 2.Sb3#
- 2.Sd3#
- 2.Se4#
- 2.Sa6#
- 2.Se6#
- 2.Sd7#
- 2.Qd7#
- 1...Qxe2
- Tries
- 1.Ka6?
- threat
- 2.Sb3#
- 2.Sxe6#
- 1...Qxe2+
- 2.Scd3#
- 1...Qxc5
- 2.Bxc5#
- 2.Qd7#
- 1...Bxc1
- 2.Sd5#
- 1...Bxb4
- 2.Qxb4#
- 1...Bc3
- 2.Sc2#
- 1...Be3
- 2.Sbd3#
- 1...Se4
- 2.Rxe4#
- 1...e5
- 2.Sb3#
- 2.Scd3#
- 2.Se4#
- 2.Se6#
- 2.Sd7#
- 2.Qd7#
- 1...Bxb7+!
- threat
- 1.Qb3?
- threat
- 2.Rc4#
- 2.Qc4#
- 1...Qxc5+
- 2.Bxc5#
- 1...Bxb4+
- 2.Qxb4#
- 1...Qxe2
- 2.Sd3#
- 2.Sd7#
- 1...Bxc1
- 2.Sc2#
- 2.Sc6#
- 1...Be3
- 2.Sc6#
- 2.Qb2#
- 2.Qc3#
- 2.Qxe3#
- 1...Se4
- 2.Rxe4#
- 1...Bc3
- 2.Qxc3#
- 1...Qd5!
- threat
- 1.Qb5?
- threat
- 2.Sb3#
- 2.Sxe6#
- 2.Rc4#
- 2.Qc4#
- 1...Bxb4+
- 2.Qxb4#
- 1...Qxe2
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Se4#
- 2.Sa6#
- 2.Sxe6#
- 2.Sd7#
- 1...Qxc5
- 2.Bxc5#
- 2.Rc4#
- 2.Qxc5#
- 1...Be3
- 2.Sb3#
- 2.Sxe6#
- 1...Se4
- 2.Sb3#
- 2.Sxe6#
- 2.Rxe4#
- 1...Qd5
- 2.Sb3#
- 2.Sxe6#
- 1...Bc3
- 2.Sb3#
- 2.Sxe6#
- 1...e5
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Se4#
- 2.Sa6#
- 2.Se6#
- 2.Sd7#
- 2.Rc4#
- 2.Qc4#
- 2.Qd7#
- 1...Bxc1!
- threat
- 1.Ka6?
- Keys
- 1.Kb5!
- threat
- 2.Rc4#
- 1...Qxe2+
- 2.Scd3#
- 1...Qe8+
- 2.Sd7#
- 1...Qxc5+
- 2.Bxc5#
- 1...Bxc1
- 2.Sd5#
- 1...Be3
- 2.Sd3#
- 1...Se4
- 2.Rxe4#
- 1...Qd5
- 2.Sc6#
- 1...Bc3
- 2.Sc2#
- threat
- 1.Kb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- Q(d);CHECK,OGATE,P_SPINQ(d),XS(G)::B(H),XQ(d)
- B(a);N_PINS(E),P_PINS(G),XR(A)::QAR(D)+S(E)
- B(a);N_PINS(E),P_PINS(G)::QAR(D)+S(E)
- B(a);CHECK,OGATE,P_PINS(G),P_SPINB(a),XS(E)::QAR2(D),XB(a)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- Tries
- Try
- K(F);N_SPINS(E),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK,N_GUARD,XR(C)::B(H)+S(G)
- B(a);N_GUARD,XR(A)::QAR(D)+S(E)
- B(a);OGATE,P_SPINB(a),XS(E)::QAR2(D),XB(a)
- B(a);SBLOCK::QAR(D)+S(E),DCHECK
- B(a);N_GUARD::QAR(D)+S(E)
- S(b);N_GUARD::R1(C),XS(b)
- Refutation
- B(f);CHECK,XB(I)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK,OGATE,P_SPINQ(d),XS(G)::B(H),XQ(d)
- B(a);CHECK,OGATE,P_PINS(G),XS(E)::QAR2(D),XB(a)
- S(b);N_GUARD::R1(C),XS(b)
- B(a);N_GUARD::QAB1(D),XB(a)
- Refutation
- Q(d);
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- B(a);CHECK,OGATE,XS(E)::QAR2(D),XB(a)
- Refutation
- B(a);N_PINS(E),XR(A)
- Try
- Actual
- K(F);N_SPINS(E),P-FLIGHT,P_SPINS(G)
- Threat
- R1(A)
- Vars
- Q(d);CHECK,N_PINS(G),XR(C)::B(H)+S(G)
- Q(d);CHECK,N_PINS(G)::B(H)+S(G)
- Q(d);CHECK,OGATE,P_SPINQ(d),XS(G)::B(H),XQ(d)
- B(a);N_GUARD,XR(A)::QAR(D)+S(E)
- B(a);N_GUARD::QAR(D)+S(E)
- S(b);N_GUARD::R1(C),XS(b)
- Q(d);SBLOCK::QAR(D)+S(E),DCHECK
- B(a);SBLOCK::QAR(D)+S(E),DCHECK
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).