MESON Chess Problem Database
Problem Display
PID: 50685 (Bn3R2/2Br4/q7/pQ1b2pN/3Pk2b/1R3N2/4P3/7K w - - 0 1)
Heyl, Peter
Schach-Aktiv, 2000
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Qb7
- 2.Qd3#
- 1...Qc8
- 2.Qd3#
- 1...Qb6
- 2.Qd3#
- 1...Qc6
- 2.Qd3#
- 1...Qd6
- 2.Qd3#
- 1...Qe6
- 2.Qd3#
- 1...Qf6
- 2.Qd3#
- 1...Qg6
- 2.Qd3#
- 1...Qh6
- 2.Qd3#
- 1...Qa7
- 2.Qd3#
- 1...Qxa8
- 2.Qd3#
- 1...Rxc7
- 2.Bxd5#
- 2.Qxd5#
- 1...Re7
- 2.Bxd5#
- 2.Qxd5#
- 1...Rf7
- 2.Qxd5#
- 1...Rg7
- 2.Bxd5#
- 2.Qxd5#
- 1...Rh7
- 2.Bxd5#
- 2.Qxd5#
- 1...Bg3
- 2.Sxg3#
- 1...Bc6
- 2.Sf6#
- 2.Qe5#
- 2.Qf5#
- 1...Bb7
- 2.Qe5#
- 2.Qf5#
- 1...Bxa8
- 2.Qe5#
- 2.Qf5#
- 1...g4
- 2.Rf4#
- 1...Qb7
- Tries
- 1.Sf6+?
- 1...Qxf6
- 2.Qd3#
- 1...Kf5!
- 1...Qxf6
- 1.Bf4?
- threat
- 2.Re3#
- 1...gxf4
- 2.Rxf4#
- 1...Qf6
- 2.Qd3#
- 1...Rf7
- 2.Qxd5#
- 1...Bf2!
- threat
- 1.Be5?
- threat
- 2.Sd2#
- 1...Qf6
- 2.Qd3#
- 1...Be1
- 2.Sxg5#
- 1...Rf7!
- threat
- 1.Rd3?
- threat
- 2.Sd2#
- 1...Rf7
- 2.Qxd5#
- 1...Be1
- 2.Sxg5#
- 1...Qf6!
- threat
- 1.Re8+?
- 1...Qe6
- 2.Qd3#
- 1...Re7
- 2.Qxd5#
- 1...Kf5!
- 1...Qe6
- 1.Qc4?
- threat
- 2.Sd2#
- 1...Qf6
- 2.Qd3#
- 2.Qc2#
- 1...Rf7
- 2.Qxd5#
- 1...Be1
- 2.Sxg5#
- 1...Qxc4!
- threat
- 1.Qxd7?
- threat
- 2.Bxd5#
- 2.Qg4#
- 2.Qf5#
- 2.Qxd5#
- 1...Qxa8
- 2.Sf6#
- 2.Qg4#
- 2.Qf5#
- 2.Qh7#
- 1...Bxa8
- 2.Sd2#
- 2.Qf5#
- 1...Qd3
- 2.Re8#
- 2.Qe6#
- 2.Qe8#
- 2.Qe7#
- 1...Qc4
- 2.Sf6#
- 2.Re8#
- 2.Qg4#
- 2.Qf5#
- 2.Qe6#
- 2.Qe8#
- 2.Qe7#
- 2.Qh7#
- 1...Qb5
- 2.Sf6#
- 2.Re8#
- 2.Qg4#
- 2.Qf5#
- 2.Qe6#
- 2.Qe7#
- 2.Qh7#
- 1...Qb7
- 2.Sf6#
- 2.Qg4#
- 2.Qf5#
- 2.Qh7#
- 1...Qc8
- 2.Sf6#
- 2.Bxd5#
- 2.Qxd5#
- 1...Qc6
- 2.Qg4#
- 2.Qf5#
- 1...Qd6
- 2.Qf5#
- 1...Qe6
- 2.Qxe6#
- 1...Qf6
- 2.Sxf6#
- 2.Bxd5#
- 2.Qxd5#
- 1...Qg6
- 2.Bxd5#
- 2.Qg4#
- 2.Qxd5#
- 1...Bg3
- 2.Sxg3#
- 2.Bxd5#
- 2.Qf5#
- 2.Qxd5#
- 1...Bc6
- 2.Sd2#
- 2.Sf6#
- 2.Re8#
- 2.Qf5#
- 2.Qe6#
- 1...Bb7
- 2.Sd2#
- 2.Qf5#
- 1...Sc6
- 2.Sf6#
- 2.Qg4#
- 2.Qf5#
- 2.Qh7#
- 1...g4
- 2.Bxd5#
- 2.Rf4#
- 2.Qxg4#
- 2.Qf5#
- 2.Qxd5#
- 1...Sxd7!
- threat
- 1.e3?
- threat
- 2.Sd2#
- 1...Rf7
- 2.Qxd5#
- 1...Be1
- 2.Sxg5#
- 1...Qf6!
- threat
- 1.Sf6+?
- Keys
- 1.Bb6!
- threat
- 2.Sd2#
- 1...Qxb6
- 2.Qd3#
- 1...Rf7
- 2.Qxd5#
- 1...Be1
- 2.Sxg5#
- threat
- 1.Bb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- Q(f);N_GUARD,N_SPINB(d)::QAB1(F)
- Q(f);N_GUARD::QAB1(F)
- Q(f);N_GUARD,N_SPINB(d),XB(I)::QAB1(F)
- R(g);N_GUARD::QAB1(F),XB(d)
- B(b);N_GUARD::S(G),XB(b)
- P(e);N_GUARD::R1(J)
- Tries
- Try
- S(G);CHECK
- Vars
- Q(f);XS(G)::QAB1(F)
- Refutation
- K(a);P_PINS(D),S_FLIGHT
- Try
- B(H);
- Threat
- R1(C)
- Vars
- P(e);OGATE,XB(H)::R1(J),XP(e)
- Q(f);N_GUARD::QAB1(F)
- R(g);N_GUARD::QAB1(F),XB(d)
- Refutation
- B(b);
- Try
- B(H);
- Threat
- S(D)
- Vars
- Q(f);N_GUARD::QAB1(F)
- B(b);N_GUARD::S(D),XP(e)
- Refutation
- R(g);
- Try
- R(C);
- Threat
- S(D)
- Vars
- R(g);N_GUARD::QAB1(F),XB(d)
- B(b);N_GUARD::S(D),XP(e)
- Refutation
- Q(f);
- Try
- R(J);CHECK
- Vars
- Q(f);P_SPINQ(f)::QAB1(F)
- R(g);P_SPINR(g)::QAB1(F),XB(d)
- Refutation
- K(a);P_PINS(D),S_FLIGHT
- Try
- Q(F);
- Threat
- S(D)
- Vars
- R(g);N_GUARD::QAB1(F),XB(d)
- B(b);N_GUARD::S(D),XP(e)
- Refutation
- Q(f);XQ(F)
- Try
- Q(F);XR(g)
- Threat
- DUALS(4)
- Vars
- Q(f);::QAB1(F)
- Q(f);N_GUARD::QAR2(F),XQ(f)
- Refutation
- S(h);XQ(F)
- Try
- P(B);
- Threat
- S(D)
- Vars
- R(g);N_GUARD::QAB1(F),XB(d)
- B(b);N_GUARD::S(D),XP(e)
- Refutation
- Q(f);
- Try
- Actual
- B(H);
- Threat
- S(D)
- Vars
- Q(f);N_GUARD,XB(H)::QAB1(F)
- R(g);N_GUARD::QAB1(F),XB(d)
- B(b);N_GUARD::S(D),XP(e)
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).