MESON Chess Problem Database
Problem Display
PID: 157781 (Kn1Q4/b1P2B2/4PNq1/2p1kN2/5RpP/5n1P/3B4/5R2 w - - 0 1)
Mazul, Waldemar
The Problemist, 1997
#2
12 + 7
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Qh7
- 2.Sxg4#
- 1...Qxf6
- 2.Qd6#
- 1...Qh6
- 2.Sxg4#
- 1...Se1
- 2.Bc3#
- 2.Rxe1#
- 2.Re4#
- 1...Sg1
- 2.Bc3#
- 2.Re4#
- 1...Sh2
- 2.Bc3#
- 2.Re1#
- 2.Re4#
- 1...Sd4
- 2.Re4#
- 1...Sxh4
- 2.Bc3#
- 2.Re1#
- 2.Re4#
- 1...Sg5
- 2.Sxg4#
- 2.Bc3#
- 1...Qh7
- Tries
- 1.Sg3?
- threat
- 2.Qd5#
- 1...Qe4+
- 2.Rxe4#
- 1...Qxf6
- 2.Re4#
- 1...Qd3
- 2.Sxg4#
- 1...Qf5
- 2.Rxf5#
- 1...Sd7!
- threat
- 1.Sh6?
- threat
- 2.Qd5#
- 1...Qe4+
- 2.Rxe4#
- 1...Qxf6
- 2.Sxg4#
- 1...Qd3
- 2.Sfxg4#
- 2.Shxg4#
- 1...Qf5
- 2.Rxf5#
- 1...Sd7!
- threat
- 1.Bc3+?
- 1...Sd4
- 2.Re4#
- 1...Kxf4!
- 1...Sd4
- 1.R1xf3?
- threat
- 2.Bc3#
- 2.Re4#
- 1...Qxf5
- 2.Bc3#
- 2.Rxf5#
- 1...Qxf7
- 2.Re4#
- 1...Qxf6
- 2.Bc3#
- 2.Qd6#
- 1...Sc6
- 2.Re4#
- 1...c4
- 2.Re4#
- 1...gxf3!
- threat
- 1.hxg4?
- threat
- 2.Re4#
- 1...Qxf5
- 2.Rxf5#
- 1...Qxg4
- 2.Sxg4#
- 1...Qxf6
- 2.Qd6#
- 1...Sg5
- 2.Bc3#
- 1...Sxd2!
- threat
- 1.e7?
- threat
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Kxf6
- 2.e8Q#
- 1...Qxf7
- 2.Qd6#
- 1...Qxf6
- 2.Qd5#
- 1...Sxd2
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Sxh4
- 2.Bc3#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...gxh3
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Qh5
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Qh7
- 2.Sxg4#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Qg5
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Qh6
- 2.Sxg4#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Qg7
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Qg8
- 2.Qd6#
- 1...Bb6
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Se1
- 2.Bc3#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Sg1
- 2.Bc3#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Sh2
- 2.Bc3#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Sd4
- 2.Qd6#
- 1...Sg5
- 2.Sxg4#
- 2.Bc3#
- 2.Qd6#
- 1...Sa6
- 2.Sd7#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Sc6
- 2.Sd7#
- 2.Qd6#
- 1...Sd7
- 2.Sxd7#
- 2.e8Q#
- 2.e8R#
- 1...g3
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...c4
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Qxf5!
- threat
- 1.Sg3?
- Keys
- 1.Se3!
- threat
- 2.Sc4#
- 1...Qe4+
- 2.Rxe4#
- 1...Kxf4
- 2.Qd6#
- 1...Qxf7
- 2.Re4#
- 1...Sxd2
- 2.Qd5#
- 1...Qc2
- 2.Sexg4#
- 1...Qd3
- 2.Sexg4#
- 1...c4
- 2.Sxc4#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 4
- Sets
- Q(e);N_GUARD::S(H),XP(b)
- Q(e);SBLOCK,XS(H)::QAB1(L)
- S(a);::R1(D)
- Tries
- Try
- S(F);
- Threat
- QAR1(L)
- Vars
- Q(e);CHECK,N_GUARD::R1(D),XQ(e)
- Q(e);N_GUARD,XS(H)::R1(D)
- Q(e);N_GUARD::S(H),XP(b)
- Q(e);N_GUARD::R1(D),XQ(e)
- Refutation
- S(g);
- Try
- S(F);
- Threat
- QAR1(L)
- Vars
- Q(e);CHECK,N_GUARD::R1(D),XQ(e)
- Q(e);N_GUARD,XS(H)::S(F),XP(b)
- Q(e);N_GUARD::R1(D),XQ(e)
- Refutation
- S(g);
- Try
- B(B);CHECK
- Vars
- S(a);P_SPINS(a)::R1(D)
- Refutation
- K(d);P_SPINS(a),S_FLIGHT,XR(D)
- Try
- R(A);XS(a)
- Threat
- DUALS(2)
- Vars
- Q(e);XB(J)::R1(D)
- S(g);::R1(D)
- P(c);::R1(D)
- Refutation
- P(b);XR(A)
- Try
- P(C);XP(b)
- Threat
- R1(D)
- Vars
- Q(e);OGATE,XS(F)::R1(D),XQ(e)
- Q(e);XP(C)::S(H),XQ(e)
- Q(e);SBLOCK,XS(H)::QAB1(L)
- S(a);N_GUARD::B(B)
- Refutation
- S(a);XB(B)
- Try
- P(G);
- Threat
- DUALS(3)
- Vars
- K(d);S_FLIGHT,XS(H)::P=Q
- Q(e);XB(J)::QAB1(L)
- Q(e);SBLOCK,XS(H)::QAR1(L)
- Q(e);::QAB1(L)
- S(a);::QAB1(L)
- Refutation
- Q(e);XS(F)
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- Q(e);CHECK,N_GUARD::R1(D),XQ(e)
- K(d);P_SPINS(a),S_FLIGHT,XR(D)::QAB(L)
- Q(e);N_GUARD,XB(J)::R1(D)
- S(a);XB(B)::QAR1(L)
- Q(e);N_GUARD::S(F),XP(b)
- P(c);::S(F),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).