MESON Chess Problem Database
Problem Display
PID: 75999 (6R1/8/Q7/8/1B2NpK1/8/3Rp2P/3bkN2 w - - 0 1)
Kovacevic, Marjan
7th Place, Liga Problemista, 2007
#2
8 + 4
| 273 | Mat Plus | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Bc2
- 2.Qxe2#
- 1...Bb3
- 2.Qxe2#
- 1...Ba4
- 2.Qxe2#
- 1...exf1Q+
- 2.Re2#
- 1...exf1S+
- 2.Re2#
- 1...exf1B+
- 2.Re2#
- 1...exf1R+
- 2.Re2#
- 1...Bc2
- Tries
- 1.Kh3?
- 1...exf1Q+
- 2.Rdg2#
- 1...exf1B+
- 2.Rdg2#
- 1...Kxf1
- 2.Rxd1#
- 1...exf1S
- 2.Re2#
- 1...exf1R
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Re2#
- 2.Rf2#
- 2.Rdg2#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 1...Bc2
- 2.Qxe2#
- 1...Bb3
- 2.Qxe2#
- 1...Ba4
- 2.Qxe2#
- 1...f3!
- 1...exf1Q+
- 1.Kh4?
- 1...Kxf1
- 2.Rxd1#
- 1...exf1Q
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Re2#
- 2.Rf2#
- 2.Rdg2#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 1...exf1S
- 2.Re2#
- 1...exf1B
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Re2#
- 2.Rf2#
- 2.Rdg2#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 1...exf1R
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Re2#
- 2.Rf2#
- 2.Rdg2#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 1...Bc2
- 2.Qxe2#
- 1...Bb3
- 2.Qxe2#
- 1...Ba4
- 2.Qxe2#
- 1...f3!
- 1...Kxf1
- 1.Kf5?
- 1...Kxf1
- 2.Rxd1#
- 1...exf1Q
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Re2#
- 2.Rf2#
- 2.Rdg2#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 1...exf1S
- 2.Re2#
- 1...exf1B
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Re2#
- 2.Rf2#
- 2.Rdg2#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 1...exf1R
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Re2#
- 2.Rf2#
- 2.Rdg2#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 1...Bc2
- 2.Qxe2#
- 1...Bb3
- 2.Qxe2#
- 1...Ba4
- 2.Qxe2#
- 1...f3!
- 1...Kxf1
- 1.Kh5?
- 1...exf1Q+
- 2.Re2#
- 1...exf1S+
- 2.Re2#
- 1...exf1B+
- 2.Re2#
- 1...exf1R+
- 2.Re2#
- 1...Kxf1
- 2.Rxd1#
- 1...Bc2
- 2.Qxe2#
- 1...Bb3
- 2.Qxe2#
- 1...Ba4
- 2.Qxe2#
- 1...f3!
- 1...exf1Q+
- 1.Se3?
- threat
- 2.Rxd1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Rxe2#
- 2.Rd3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 1...Bc2
- 2.Rd1#
- 2.Rxc2#
- 2.Rxe2#
- 2.Rd3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 2.Qxe2#
- 1...Bb3
- 2.Rd1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Rxe2#
- 2.Rd3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 2.Qxe2#
- 1...Ba4
- 2.Rd1#
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Rxe2#
- 2.Rd3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 2.Qxe2#
- 1...fxe3!
- threat
- 1.Sfg3?
- threat
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Rxe2#
- 2.Rd3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 1...Bc2
- 2.Rd3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 2.Qxe2#
- 1...Bb3
- 2.Rd3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 2.Qxe2#
- 1...Ba4
- 2.Rd3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 2.Qxe2#
- 1...fxg3!
- threat
- 1.Rgd8?
- threat
- 2.Rxd1#
- 1...Bc2
- 2.Rd1#
- 2.Qxe2#
- 1...Bb3
- 2.Rd1#
- 2.Qxe2#
- 1...Ba4
- 2.Rd1#
- 2.Qxe2#
- 1...Kxf1!
- threat
- 1.Qd3?
- threat
- 2.Rxd1#
- 1...Bc2
- 2.Rd1#
- 2.Qxe2#
- 1...Bb3
- 2.Rd1#
- 2.Qxe2#
- 1...Ba4
- 2.Rd1#
- 2.Qxe2#
- 1...Kxf1!
- threat
- 1.Qa1?
- threat
- 2.Rxd1#
- 1...exf1Q+
- 2.Qxd1#
- 1...exf1S+
- 2.Qxd1#
- 1...exf1B+
- 2.Qxd1#
- 1...exf1R+
- 2.Qxd1#
- 1...Kxf1!
- threat
- 1.Kh3?
- Keys
- 1.Kxf4!
- 1...exf1Q+
- 2.Rf2#
- 1...exf1R+
- 2.Rf2#
- 1...Kxf1
- 2.Rxd1#
- 1...exf1S
- 2.Re2#
- 1...exf1B
- 2.Ra2#
- 2.Rb2#
- 2.Rc2#
- 2.Re2#
- 2.Rf2#
- 2.Rdg2#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rdd8#
- 1...Bc2
- 2.Qxe2#
- 1...Bb3
- 2.Qxe2#
- 1...Ba4
- 2.Qxe2#
- 1...exf1Q+
- 1.Kxf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(a);N_GUARD::QAR1(G),XP(c)
- P(c);CHECK,SBLOCK,XS(A)::B(D)+R(B),DCHECK
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- P(c);CHECK,OGATE,XS(A)::B(D)+R(B)
- K(b);P-FLIGHT,P_SPINP(c),XS(A)::R(B),XB(a)
- P(c);SBLOCK,XS(A)::B(D)+R(B),DCHECK
- B(a);N_GUARD::QAR1(G),XP(c)
- Refutation
- P(d);
- Try
- K(F);P-FLIGHT
- Vars
- K(b);P-FLIGHT,P_SPINP(c),XS(A)::R(B),XB(a)
- P(c);SBLOCK,XS(A)::B(D)+R(B),DCHECK
- B(a);N_GUARD::QAR1(G),XP(c)
- Refutation
- P(d);
- Try
- K(F);S_FLIGHT
- Vars
- K(b);P-FLIGHT,P_SPINP(c),XS(A)::R(B),XB(a)
- P(c);SBLOCK,XS(A)::B(D)+R(B),DCHECK
- B(a);N_GUARD,P_PINS(E)::QAR1(G),XP(c)
- B(a);N_GUARD::QAR1(G),XP(c)
- Refutation
- P(d);
- Try
- K(F);S_FLIGHT
- Vars
- P(c);CHECK,SBLOCK,XS(A)::B(D)+R(B),DCHECK
- K(b);P-FLIGHT,P_SPINP(c),XS(A)::R(B),XB(a)
- B(a);N_GUARD::QAR1(G),XP(c)
- Refutation
- P(d);
- Try
- S(A);
- Threat
- DUALS(11)
- Refutation
- P(d);XS(A)
- Try
- S(A);
- Threat
- DUALS(10)
- Refutation
- P(d);XS(A)
- Try
- R(H);
- Threat
- B(D)+R(B),DCHECK,XB(a)
- Refutation
- K(b);P-FLIGHT,P_SPINP(c),XS(A)
- Try
- Q(G);
- Threat
- B(D)+R(B),DCHECK,XB(a)
- Refutation
- K(b);P-FLIGHT,P_SPINP(c),XS(A)
- Try
- Q(G);P_PINB(a)
- Threat
- B(D)+R(B),DCHECK,XB(a)
- Vars
- P(c);CHECK,N_GUARD,SBLOCK,XS(A)::QAR1(G),XB(a)
- Refutation
- K(b);P-FLIGHT,XS(A)
- Try
- Actual
- K(F);P-FLIGHT,XP(d)
- Vars
- P(c);CHECK,OGATE,XS(A)::B(D)+R(B)
- K(b);P-FLIGHT,P_SPINP(c),XS(A)::R(B),XB(a)
- P(c);SBLOCK,XS(A)::B(D)+R(B),DCHECK
- B(a);N_GUARD::QAR1(G),XP(c)
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).