MESON Chess Problem Database
Problem Display
PID: 192690 (8/1r2bN2/1p2B3/2kq2R1/Q1N2n1r/2P1KP2/6p1/6B1 w - - 0 1)
Haralovic, Mato
The Problemist, 1981
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Qe5+
- 2.Kd2#
- 1...Qf5
- 2.Kd2#
- 1...Qxg5
- 2.Kd2#
- 2.Ke4#
- 1...Rh2
- 2.Kxf4#
- 1...Rh3
- 2.Kxf4#
- 1...Rh5
- 2.Kxf4#
- 1...Rh6
- 2.Kxf4#
- 1...Rh7
- 2.Kxf4#
- 1...Rh8
- 2.Kxf4#
- 1...Se2
- 2.Rxd5#
- 1...Sd3
- 2.Rxd5#
- 1...Sh3
- 2.Rxd5#
- 1...Sh5
- 2.Rxd5#
- 1...Sg6
- 2.Rxd5#
- 1...Qe5+
- Tries
- 1.Sa3?
- threat
- 2.Qb5#
- 2.Qc4#
- 1...Qe5+
- 2.Kd2#
- 1...Bxg5
- 2.Qb5#
- 1...Sxe6
- 2.Qb5#
- 1...Se2
- 2.Rxd5#
- 2.Qb5#
- 1...Sd3
- 2.Rxd5#
- 2.Qb5#
- 1...Sh3
- 2.Rxd5#
- 2.Qb5#
- 1...Sh5
- 2.Rxd5#
- 2.Qb5#
- 1...Sg6
- 2.Rxd5#
- 2.Qb5#
- 1...b5!
- threat
- 1.Sa5?
- threat
- 2.Sb3#
- 2.Sxb7#
- 2.Qc6#
- 2.Qb4#
- 2.Qc4#
- 1...Qe5+
- 2.Kd2#
- 1...Bxg5
- 2.Qb4#
- 1...Sxe6
- 2.Sb3#
- 2.Sxb7#
- 2.Qc6#
- 1...b5
- 2.Qd4#
- 1...Ra7
- 2.Sb3#
- 2.Qc6#
- 2.Qb4#
- 2.Qc4#
- 1...Rc7
- 2.Sb3#
- 2.Qb4#
- 2.Qc4#
- 1...Rd7
- 2.Sb3#
- 2.Qc6#
- 2.Qb4#
- 2.Qc4#
- 1...Rb8
- 2.Sb3#
- 2.Qc6#
- 2.Qb4#
- 2.Qc4#
- 1...Se2
- 2.Sb3#
- 2.Sxb7#
- 2.Rxd5#
- 2.Qc6#
- 1...Sd3
- 2.Sb3#
- 2.Sxb7#
- 2.Rxd5#
- 2.Qc6#
- 1...Sh3
- 2.Sb3#
- 2.Sxb7#
- 2.Rxd5#
- 2.Qc6#
- 1...Sh5
- 2.Sb3#
- 2.Sxb7#
- 2.Rxd5#
- 2.Qc6#
- 1...Sg6
- 2.Sb3#
- 2.Sxb7#
- 2.Rxd5#
- 2.Qc6#
- 1...bxa5!
- threat
- 1.Sce5?
- threat
- 2.Qb4#
- 1...Qxf3+
- 2.Kxf3#
- 1...Qe4+
- 2.Kxe4#
- 1...Qd2+
- 2.Kxd2#
- 1...Qd3+
- 2.Sxd3#
- 1...Qd4+
- 2.cxd4#
- 1...Qxe5+
- 2.Kd2#
- 1...Qxe6
- 2.Ke4#
- 1...Sxe6
- 2.Sd3#
- 1...Qb3
- 2.Kd2#
- 2.Ke4#
- 2.Sd3#
- 2.Sd7#
- 2.Qc6#
- 1...Qc4
- 2.Sd3#
- 2.Sd7#
- 2.Qc6#
- 2.Qxc4#
- 1...Se2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sh3
- 2.Sd3#
- 1...Sh5
- 2.Sd3#
- 1...Sg6
- 2.Sd3#
- 1...b5!
- threat
- 1.Sd8?
- threat
- 2.Sxb7#
- 2.Qc6#
- 2.Qb4#
- 1...Qe5+
- 2.Kd2#
- 1...Bxg5
- 2.Qb4#
- 1...Ra7
- 2.Qc6#
- 2.Qb4#
- 1...Rc7
- 2.Qb4#
- 1...Rd7
- 2.Qc6#
- 2.Qb4#
- 1...Rb8
- 2.Qc6#
- 2.Qb4#
- 1...Sd3
- 2.Sxb7#
- 2.Rxd5#
- 2.Qc6#
- 1...b5
- 2.Qb4#
- 1...Bxd8!
- threat
- 1.Bxd5?
- threat
- 2.Kd2#
- 2.Ke4#
- 2.Qc6#
- 2.Qb4#
- 1...Bxg5
- 2.Ke4#
- 2.Qc6#
- 1...Rh1
- 2.Qc6#
- 2.Qb4#
- 1...Rh6
- 2.Kd2#
- 2.Ke4#
- 2.Kxf4#
- 2.Qb4#
- 1...Rc7
- 2.Kd2#
- 2.Ke4#
- 2.Qb4#
- 1...Bf6
- 2.Qc6#
- 2.Qb4#
- 1...Se2
- 2.Qc6#
- 2.Qb4#
- 1...Sd3
- 2.Qc6#
- 1...Sh3
- 2.Qc6#
- 2.Qb4#
- 1...Sh5
- 2.Qc6#
- 2.Qb4#
- 1...Se6
- 2.Qc6#
- 2.Qb4#
- 1...Sg6
- 2.Qc6#
- 2.Qb4#
- 1...b5
- 2.Kd2#
- 2.Ke4#
- 2.Qb4#
- 1...Sxd5+!
- threat
- 1.Sa3?
- Keys
- 1.Sfe5!
- threat
- 2.Qb4#
- 1...Qxf3+
- 2.Kxf3#
- 1...Qe4+
- 2.Kxe4#
- 1...Qd2+
- 2.Kxd2#
- 1...Qd3+
- 2.Sxd3#
- 1...Qd4+
- 2.cxd4#
- 1...Qxe5+
- 2.Kd2#
- 1...Qxc4
- 2.Qc6#
- 1...Qxe6
- 2.Ke4#
- 1...Sd3
- 2.Sxd3#
- threat
- 1.Sfe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 11
- Sets
- Q(e);CHECK::B(A)+K(C)
- Q(e);::B(A)+K(C)
- R(c);::B(A)+K(C),XS(b)
- R(c);P_PINP(D)::B(A)+K(C),XS(b)
- S(b);N_GUARD::R1(G),XQ(e)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK::B(A)+K(C)
- B(h);N_SPINQ(e),XR(G)::QAR1(E)
- S(b);XB(H)::QAR1(E)
- Refutation
- P(f);
- Try
- S(F);
- Threat
- DUALS(5)
- Vars
- Q(e);CHECK::B(A)+K(C)
- B(h);N_SPINQ(e),XR(G)::QAB1(E)
- P(f);SBLOCK::QAB1(E)
- Refutation
- P(f);XS(F)
- Try
- S(F);N_PINQ(e)
- Threat
- QAB1(E)
- Vars
- Q(e);CHECK,XP(D)::B(A)+K(C),XQ(e)
- Q(e);CHECK::B(A)+K(C),XQ(e)
- Q(e);CHECK::R(G)+S(F),DCHECK,XQ(e)
- Q(e);CHECK,OGATE::P(B),XQ(e)
- Q(e);CHECK,P_SPINQ(e),XS(F)::B(A)+K(C)
- Q(e);P_PINS(F),XB(H)::B(A)+K(C)
- S(b);N_GUARD,XB(H)::S(F)
- S(b);N_GUARD::S(F)
- S(b);N_GUARD::S(F),XS(b)
- Refutation
- P(f);
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- Q(e);CHECK::B(A)+K(C)
- B(h);N_SPINQ(e),XR(G)::QAB1(E)
- R(g);::QAB1(E)
- P(f);::QAB1(E)
- Refutation
- B(h);XS(I)
- Try
- B(H);XQ(e)
- Threat
- DUALS(4)
- Vars
- S(b);::QAR1(E)
- Refutation
- S(b);CHECK,P_SPINS(b),XB(H)
- Try
- Actual
- S(I);N_PINQ(e)
- Threat
- QAB1(E)
- Vars
- Q(e);CHECK,XP(D)::B(A)+K(C),XQ(e)
- Q(e);CHECK::B(A)+K(C),XQ(e)
- Q(e);CHECK::R(G)+S(I),DCHECK,XQ(e)
- Q(e);CHECK,OGATE::P(B),XQ(e)
- Q(e);CHECK,P_SPINQ(e),XS(I)::B(A)+K(C)
- Q(e);N_GUARD,XS(F)::QAR1(E)
- Q(e);P_PINS(I),XB(H)::B(A)+K(C)
- S(b);N_GUARD::S(I),XS(b)
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).