MESON Chess Problem Database
Problem Display
PID: 78080 (Nn3b2/2P1kPp1/pNn2rP1/P2Pp2p/1P1pQp1B/3P1K2/8/8 w - - 0 1)
Lazard, Frederic
1st Comm., Magyar Sakkvilag, 1939
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Kd6
- 2.c8S#
- 1...Sxb4
- 2.Qxe5#
- 1...Sxa5
- 2.Qxe5#
- 1...Sa7
- 2.Qxe5#
- 1...Sd8
- 2.c8S#
- 1...Sd7
- 2.Sc8#
- 1...Kd6
- Tries
- 1.Ke2?
- 1...Kd6
- 2.c8S#
- 1...Sxb4
- 2.Qxe5#
- 1...Sxa5
- 2.Qxe5#
- 1...Sa7
- 2.Qxe5#
- 1...Sd8
- 2.c8S#
- 1...Sd7
- 2.Sc8#
- 1...f3+!
- 1...Kd6
- 1.Kf2?
- 1...Kd6
- 2.c8S#
- 1...Sxb4
- 2.Qxe5#
- 1...Sxa5
- 2.Qxe5#
- 1...Sa7
- 2.Qxe5#
- 1...Sd8
- 2.c8S#
- 1...Sd7
- 2.Sc8#
- 1...f3!
- 1...Kd6
- 1.Kg2?
- 1...Kd6
- 2.c8S#
- 1...Sxb4
- 2.Qxe5#
- 1...Sxa5
- 2.Qxe5#
- 1...Sa7
- 2.Qxe5#
- 1...Sd8
- 2.c8S#
- 1...Sd7
- 2.Sc8#
- 1...f3+!
- 1...Kd6
- 1.Bg5?
- 1...Kd6
- 2.c8S#
- 1...Sxb4
- 2.Qxe5#
- 1...Sxa5
- 2.Qxe5#
- 1...Sa7
- 2.Qxe5#
- 1...Sd8
- 2.c8S#
- 1...Sd7
- 2.Sc8#
- 1...h4!
- 1...Kd6
- 1.Qf5?
- threat
- 2.Sc8#
- 2.Qe6#
- 1...Kd6
- 2.c8S#
- 1...Sa7
- 2.Qe6#
- 2.Qxe5#
- 1...Sd8
- 2.Sc8#
- 2.c8S#
- 1...e4+!
- threat
- 1.Qe1?
- 1...Kd6
- 2.c8S#
- 1...Sxb4
- 2.Qxb4#
- 2.Qxe5#
- 1...Sxa5
- 2.Qxe5#
- 1...Sa7
- 2.Qxe5#
- 1...Sd8
- 2.c8S#
- 1...Sd7
- 2.Sc8#
- 1...e4+!
- 1...Kd6
- 1.Qe2?
- 1...Kd6
- 2.c8S#
- 1...Sxb4
- 2.Qxe5#
- 1...Sxa5
- 2.Qxe5#
- 1...Sa7
- 2.Qxe5#
- 1...Sd8
- 2.c8S#
- 1...Sd7
- 2.Sc8#
- 1...e4+!
- 1...Kd6
- 1.Ke2?
- Keys
- 1.c8Q!
- 1...Kd6
- 2.Qc7#
- 1...Sxb4
- 2.Qxe5#
- 1...Sxa5
- 2.Qxe5#
- 1...Sa7
- 2.Qxe5#
- 1...Sd8
- 2.Qc5#
- 1...Sd7
- 2.Qxd7#
- 1...Kd6
- 1.c8Q!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(h);N_SPINP(c),N_SPINR(g),S_FLIGHT::P=S
- S(f);N_GUARD,XP(C)::QAR2(D),XP(c)
- S(f);N_GUARD,XP(F)::QAR2(D),XP(c)
- S(f);N_GUARD::QAR2(D),XP(c)
- S(f);SBLOCK::P=S
- S(j);SBLOCK::S(H)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- K(h);N_SPINP(c),N_SPINR(g),S_FLIGHT::P=S
- S(f);N_GUARD,XP(C)::QAR2(D),XP(c)
- S(f);N_GUARD,XP(F)::QAR2(D),XP(c)
- S(f);N_GUARD::QAR2(D),XP(c)
- S(f);SBLOCK::P=S
- S(j);SBLOCK::S(H)
- Refutation
- P(b);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- K(h);N_SPINP(c),N_SPINR(g),S_FLIGHT::P=S
- S(f);N_GUARD,XP(C)::QAR2(D),XP(c)
- S(f);N_GUARD,XP(F)::QAR2(D),XP(c)
- S(f);N_GUARD::QAR2(D),XP(c)
- S(f);SBLOCK::P=S
- S(j);SBLOCK::S(H)
- Refutation
- P(b);
- Try
- K(B);S_FLIGHT
- Vars
- K(h);N_SPINP(c),N_SPINR(g),S_FLIGHT::P=S
- S(f);N_GUARD,XP(C)::QAR2(D),XP(c)
- S(f);N_GUARD,XP(F)::QAR2(D),XP(c)
- S(f);N_GUARD::QAR2(D),XP(c)
- S(f);SBLOCK::P=S
- S(j);SBLOCK::S(H)
- Refutation
- P(b);CHECK
- Try
- B(E);
- Vars
- K(h);N_SPINP(c),N_SPINR(g),S_FLIGHT::P=S
- S(f);N_GUARD,XP(C)::QAR2(D),XP(c)
- S(f);N_GUARD,XP(F)::QAR2(D),XP(c)
- S(f);N_GUARD::QAR2(D),XP(c)
- S(f);SBLOCK::P=S
- S(j);SBLOCK::S(H)
- Refutation
- P(d);
- Try
- Q(D);N_PINP(c)
- Threat
- DUALS(2)
- Vars
- K(h);N_SPINR(g),S_FLIGHT::P=S
- Refutation
- P(c);CHECK
- Try
- Q(D);
- Vars
- K(h);N_SPINP(c),N_SPINR(g),S_FLIGHT::P=S
- S(f);N_GUARD,XP(F)::QAR2(D),XP(c)
- S(f);N_GUARD::QAR2(D),XP(c)
- S(f);SBLOCK::P=S
- S(j);SBLOCK::S(H)
- Refutation
- P(c);CHECK
- Try
- Q(D);
- Vars
- K(h);N_SPINP(c),N_SPINR(g),S_FLIGHT::P=S
- S(f);N_GUARD,XP(C)::QAR2(D),XP(c)
- S(f);N_GUARD,XP(F)::QAR2(D),XP(c)
- S(f);N_GUARD::QAR2(D),XP(c)
- S(f);SBLOCK::P=S
- S(j);SBLOCK::S(H)
- Refutation
- P(c);CHECK
- Try
- Actual
- P(J);
- Vars
- K(h);N_SPINP(c),N_SPINR(g),S_FLIGHT::QAB1(J)
- S(f);N_GUARD,XP(C)::QAR2(D),XP(c)
- S(f);N_GUARD,XP(F)::QAR2(D),XP(c)
- S(f);N_GUARD::QAR2(D),XP(c)
- S(f);OGATE,SBLOCK::QAB(J)
- S(j);N_GUARD::QAR1(J),XS(j)
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).