MESON Chess Problem Database
Problem Display
PID: 17994 (1N2b2N/1p2n2p/1R1PkP1R/4p3/p3Q3/K7/8/8 w - - 0 1)
Fleck, Ferenc
Jerusalem Post, 1952
#2
8 + 7
| 136 | Problem Observer | 1972 |
SOLUTION
- SOUND
- Sets
- 1...Bb5
- 2.fxe7#
- 1...Bh5
- 2.dxe7#
- 1...Bc6
- 2.fxe7#
- 1...Bg6
- 2.dxe7#
- 1...Bd7
- 2.fxe7#
- 1...Bf7
- 2.dxe7#
- 1...Sd5
- 2.Qg4#
- 1...Sf5
- 2.Qc4#
- 1...Sc6
- 2.f7#
- 1...Sg6
- 2.d7#
- 1...Sc8
- 2.f7#
- 1...Sg8
- 2.d7#
- 1...Bb5
- Tries
- 1.Ka2?
- 1...Bc6
- 2.fxe7#
- 1...Bg6
- 2.dxe7#
- 1...Sc6
- 2.f7#
- 1...Sg6
- 2.d7#
- 1...Bb5
- 2.fxe7#
- 1...Bh5
- 2.dxe7#
- 1...Bd7
- 2.fxe7#
- 1...Bf7
- 2.dxe7#
- 1...Sd5
- 2.Qg4#
- 1...Sf5
- 2.Qc4#
- 1...Sc8
- 2.f7#
- 1...Sg8
- 2.d7#
- 1...a3!
- 1...Bc6
- 1.Kb2?
- 1...Bc6
- 2.fxe7#
- 1...Bg6
- 2.dxe7#
- 1...Sc6
- 2.f7#
- 1...Sg6
- 2.d7#
- 1...Bb5
- 2.fxe7#
- 1...Bh5
- 2.dxe7#
- 1...Bd7
- 2.fxe7#
- 1...Bf7
- 2.dxe7#
- 1...Sd5
- 2.Qg4#
- 1...Sf5
- 2.Qc4#
- 1...Sc8
- 2.f7#
- 1...Sg8
- 2.d7#
- 1...a3+!
- 1...Bc6
- 1.Qf3?
- 1...Bc6
- 2.fxe7#
- 1...Sc6
- 2.f7#
- 1...e4
- 2.Qxe4#
- 1...Bb5
- 2.fxe7#
- 1...Bh5
- 2.dxe7#
- 1...Bg6
- 2.dxe7#
- 1...Bd7
- 2.fxe7#
- 1...Bf7
- 2.dxe7#
- 1...Sd5
- 2.Qg4#
- 2.Qh3#
- 1...Sg6
- 2.d7#
- 1...Sc8
- 2.f7#
- 1...Sg8
- 2.d7#
- 1...Sf5!
- 1...Bc6
- 1.Qc4+?
- 1...Sd5
- 2.Qg4#
- 1...Kf5!
- 1...Sd5
- 1.Qg4+?
- 1...Sf5
- 2.Qc4#
- 1...Kd5!
- 1...Sf5
- 1.Ka2?
- Keys
- 1.Qd3!
- 1...Bg6
- 2.dxe7#
- 1...Sg6
- 2.d7#
- 1...e4
- 2.Qxe4#
- 1...Bb5
- 2.fxe7#
- 1...Bh5
- 2.dxe7#
- 1...Bc6
- 2.fxe7#
- 1...Bd7
- 2.fxe7#
- 1...Bf7
- 2.dxe7#
- 1...Sd5
- 2.Qh3#
- 1...Sf5
- 2.Qc4#
- 1...Sc6
- 2.f7#
- 1...Sc8
- 2.f7#
- 1...Sg8
- 2.d7#
- 1...Bg6
- 1.Qd3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD::R(F)+P(E),XS(e)
- B(g);N_GUARD::R(C)+P(D),XS(e)
- S(e);N_GUARD,SBLOCK::QAB(B)
- S(e);N_GUARD::R(F)+P(E)
- S(e);N_GUARD::R(C)+P(D)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- B(g);N_GUARD::R(F)+P(E),XS(e)
- B(g);N_GUARD::R(C)+P(D),XS(e)
- S(e);N_GUARD::R(F)+P(E)
- S(e);N_GUARD::R(C)+P(D)
- S(e);N_GUARD,SBLOCK::QAB(B)
- Refutation
- P(a);
- Try
- K(A);S_FLIGHT
- Vars
- B(g);N_GUARD::R(F)+P(E),XS(e)
- B(g);N_GUARD::R(C)+P(D),XS(e)
- S(e);N_GUARD::R(F)+P(E)
- S(e);N_GUARD::R(C)+P(D)
- S(e);N_GUARD,SBLOCK::QAB(B)
- Refutation
- P(a);CHECK
- Try
- Q(B);N_PINP(b)
- Vars
- B(g);N_GUARD::R(F)+P(E),XS(e)
- S(e);N_GUARD::R(F)+P(E)
- P(b);OGATEB::QAR2(B),XP(b)
- B(g);N_GUARD::R(C)+P(D),XS(e)
- S(e);N_GUARD::R(C)+P(D)
- Refutation
- S(e);
- Try
- Q(B);CHECK,N_PINP(b)
- Vars
- S(e);N_GUARD,P_SPINS(e),SBLOCK::QAB(B)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(B);CHECK,N_PINP(b)
- Vars
- S(e);N_GUARD,P_SPINS(e),SBLOCK::QAB(B)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- Q(B);N_PINP(b)
- Vars
- B(g);N_GUARD::R(C)+P(D),XS(e)
- S(e);N_GUARD::R(C)+P(D)
- P(b);OGATEB::QAR2(B),XP(b)
- B(g);N_GUARD::R(F)+P(E),XS(e)
- S(e);N_GUARD,SBLOCK::QAB(B)
- S(e);N_GUARD::R(F)+P(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).