MESON Chess Problem Database
Problem Display
PID: 102685 (1N6/B3Q3/p1BP3p/K1bPn3/2Pk4/3P2P1/2R1PP2/8 w - - 0 1)
Monreal, Pierre
Le Courrier des Echecs, 1957
#2
13 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bb6+
- 2.Bxb6#
- 1...Bxa7
- 2.Qxa7#
- 1...Sxd3
- 2.Qe3#
- 2.e3#
- 1...Sf3
- 2.Qe3#
- 2.Qe4#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sg4
- 2.Qe4#
- 1...Sxc6+
- 2.Sxc6#
- 1...Sg6
- 2.Qe3#
- 2.Qe4#
- 1...Sd7
- 2.Qe3#
- 2.Qe4#
- 1...Sf7
- 2.Qe3#
- 2.Qe4#
- 1...Bb6+
- Tries
- 1.Kxa6?
- 1...Bxa7
- 2.Qxa7#
- 1...Sxd3
- 2.Qe3#
- 2.e3#
- 1...Sxc4
- 2.Rxc4#
- 2.Qe4#
- 1...Sxc6
- 2.Sxc6#
- 2.Qe3#
- 2.Qe4#
- 1...Bb6
- 2.Bxb6#
- 1...Sf3
- 2.Qe3#
- 2.Qe4#
- 1...Sg4
- 2.Qe4#
- 1...Sg6
- 2.Qe3#
- 2.Qe4#
- 1...Sd7
- 2.Qe3#
- 2.Qe4#
- 1...Sf7
- 2.Qe3#
- 2.Qe4#
- 1...h5!
- 1...Bxa7
- 1.Sxa6?
- threat
- 2.Bxc5#
- 1...Bb6+
- 2.Bxb6#
- 1...Sxc4+
- 2.Rxc4#
- 1...Bxa7
- 2.Qxa7#
- 1...Sxd3
- 2.Qe3#
- 2.e3#
- 1...Sd7
- 2.Qe3#
- 2.Qe4#
- 1...Sxc6+!
- threat
- 1.Sd7?
- threat
- 2.Bxc5#
- 2.Qxe5#
- 1...Bb6+
- 2.Bxb6#
- 1...Sxc4+
- 2.Rxc4#
- 1...Bxa7
- 2.Qxe5#
- 1...Sxd3
- 2.Qe3#
- 2.e3#
- 1...Sxd7
- 2.Qe3#
- 2.Qe4#
- 1...Sf3
- 2.Bxc5#
- 2.Qe3#
- 2.Qe4#
- 1...Sg4
- 2.Bxc5#
- 2.Qe4#
- 1...Sg6
- 2.Bxc5#
- 2.Qe3#
- 2.Qe4#
- 1...Sf7
- 2.Bxc5#
- 2.Qh4#
- 2.Qe3#
- 2.Qe4#
- 1...Sxc6+!
- threat
- 1.Ba8?
- 1...Bb6+
- 2.Bxb6#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sc6+
- 2.Sxc6#
- 1...Bxa7
- 2.Qxa7#
- 1...Sxd3
- 2.Sc6#
- 2.Qe3#
- 2.e3#
- 1...Sf3
- 2.Sc6#
- 2.Qe3#
- 2.Qe4#
- 1...Sg4
- 2.Sc6#
- 2.Qe4#
- 1...Sg6
- 2.Sc6#
- 2.Qe3#
- 2.Qe4#
- 1...Sd7
- 2.Sc6#
- 2.Qe3#
- 2.Qe4#
- 1...Sf7
- 2.Sc6#
- 2.Qe3#
- 2.Qe4#
- 1...h5!
- 1...Bb6+
- 1.Rc1?
- 1...Bb6+
- 2.Bxb6#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sxc6+
- 2.Sxc6#
- 1...Bxa7
- 2.Qxa7#
- 1...Sxd3
- 2.Qe3#
- 2.e3#
- 1...Sf3
- 2.Qe3#
- 2.Qe4#
- 1...Sg4
- 2.Qe4#
- 1...Sg6
- 2.Qe3#
- 2.Qe4#
- 1...Sd7
- 2.Qe3#
- 2.Qe4#
- 1...Sf7
- 2.Qe3#
- 2.Qe4#
- 1...h5!
- 1...Bb6+
- 1.Qg5?
- threat
- 2.Qe3#
- 2.Qf4#
- 1...Bb6+
- 2.Bxb6#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sxc6+
- 2.Sxc6#
- 1...Bxa7
- 2.Qe3#
- 1...Sxd3
- 2.Qe3#
- 1...Sg4
- 2.Qf4#
- 1...Sg6
- 2.Qe3#
- 1...hxg5!
- threat
- 1.Qf6?
- threat
- 2.Qf4#
- 1...Bb6+
- 2.Bxb6#
- 1...Bxa7!
- threat
- 1.Qg7?
- 1...Bb6+
- 2.Bxb6#
- 1...Bxa7
- 2.Qxa7#
- 1...h5!
- 1...Bb6+
- 1.f3?
- 1...Bb6+
- 2.Bxb6#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sxc6+
- 2.Sxc6#
- 1...Ke3
- 2.Bxc5#
- 1...Bxa7
- 2.Qxa7#
- 1...Sxd3
- 2.Qe4#
- 2.e3#
- 1...Sxf3
- 2.Qe4#
- 1...Sg4
- 2.Qe4#
- 1...Sg6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...h5!
- 1...Bb6+
- 1.g4?
- 1...Bb6+
- 2.Bxb6#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sxc6+
- 2.Sxc6#
- 1...Bxa7
- 2.Qxa7#
- 1...Sxd3
- 2.Qe3#
- 2.e3#
- 1...Sxg4
- 2.Qe4#
- 1...Sf3
- 2.Qe3#
- 2.Qe4#
- 1...Sg6
- 2.Qe3#
- 2.Qe4#
- 1...Sd7
- 2.Qe3#
- 2.Qe4#
- 1...Sf7
- 2.Qe3#
- 2.Qe4#
- 1...h5!
- 1...Bb6+
- 1.d7?
- threat
- 2.Bxc5#
- 2.Qxc5#
- 1...Bb6+
- 2.Bxb6#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sxc6+
- 2.Sxc6#
- 1...Sxd3
- 2.Qe3#
- 2.e3#
- 1...Sxd7
- 2.Qe3#
- 2.Qe4#
- 1...Sf3
- 2.Bxc5#
- 2.Qe3#
- 2.Qe4#
- 1...Sg4
- 2.Bxc5#
- 2.Qe4#
- 1...Sg6
- 2.Bxc5#
- 2.Qe3#
- 2.Qe4#
- 1...Sf7
- 2.Bxc5#
- 2.Qe3#
- 2.Qe4#
- 1...Bxa7!
- threat
- 1.Kxa6?
- Keys
- 1.f4!
- threat
- 2.Qxe5#
- 1...Bb6+
- 2.Bxb6#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sxc6+
- 2.Sxc6#
- 1...Ke3
- 2.Bxc5#
- 1...Bxa7
- 2.Qxa7#
- 1...Sxd3
- 2.e3#
- 1...Sf3
- 2.Qe4#
- 1...Sg4
- 2.Qe4#
- 1...Sg6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- threat
- 1.f4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- B(b);CHECK,OGATEB::B(K),XB(b)
- B(b);N_SPINB(b),OGATE,XB(K)::QAB(L),XB(b)
- S(c);CHECK,OGATE,XP(F)::R1(A),XS(c)
- S(c);OGATE::QAR1(L)
- S(c);CHECK,XB(I)::S(M),XS(c)
- Tries
- Try
- K(G);P-FLIGHT,XP(d)
- Vars
- B(b);N_SPINB(b),OGATE,XB(K)::QAB(L),XB(b)
- B(b);OGATEB::B(K),XB(b)
- S(c);OGATE::QAR1(L)
- Refutation
- P(e);
- Try
- S(M);XP(d)
- Threat
- B(K),XB(b)
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- S(c);CHECK,OGATE,XP(F)::R1(A),XS(c)
- B(b);N_SPINB(b),OGATE,XB(K)::QAB(L),XB(b)
- Refutation
- S(c);CHECK,XB(I)
- Try
- S(M);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- S(c);CHECK,OGATE,XP(F)::R1(A),XS(c)
- B(b);N_SPINB(b),XB(K)::QAB1(L),XS(c)
- Refutation
- S(c);CHECK,XB(I)
- Try
- B(I);
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- S(c);CHECK,OGATE,XP(F)::R1(A),XS(c)
- S(c);CHECK,N_GUARD::S(M),XS(c)
- B(b);N_SPINB(b),OGATE,XB(K)::QAB(L),XB(b)
- Refutation
- P(e);
- Try
- R(A);
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- S(c);CHECK,OGATE,XP(F)::R1(A),XS(c)
- S(c);CHECK,XB(I)::S(M),XS(c)
- B(b);N_SPINB(b),OGATE,XB(K)::QAB(L),XB(b)
- S(c);OGATE::QAR1(L)
- Refutation
- P(e);
- Try
- Q(L);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- S(c);CHECK,OGATE,XP(F)::R1(A),XS(c)
- S(c);CHECK,XB(I)::S(M),XS(c)
- B(b);N_SPINB(b),XB(K)::QAB1(L)
- S(c);XP(D)::QAB1(L)
- S(c);::QAR2(L)
- S(c);::QAB1(L)
- Refutation
- P(e);XQ(L)
- Try
- Q(L);P_PINS(c)
- Threat
- QAR2(L)
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- Refutation
- B(b);N_SPINB(b),XB(K)
- Try
- Q(L);P_PINS(c)
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- B(b);N_SPINB(b),OGATE,XB(K)::QAB(L),XB(b)
- Refutation
- P(e);
- Try
- P(C);
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- S(c);CHECK,OGATE,XP(F)::R1(A),XS(c)
- S(c);CHECK,XB(I)::S(M),XS(c)
- K(a);P_SPINS(c),S_FLIGHT::B(K),XB(b)
- B(b);N_SPINB(b),OGATE,XB(K)::QAB(L),XB(b)
- S(c);OGATE,XP(C)::QAR1(L)
- S(c);OGATE::QAR1(L)
- Refutation
- P(e);
- Try
- P(E);
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- S(c);CHECK,OGATE,XP(F)::R1(A),XS(c)
- S(c);CHECK,XB(I)::S(M),XS(c)
- B(b);N_SPINB(b),OGATE,XB(K)::QAB(L),XB(b)
- S(c);OGATE,XP(E)::QAR1(L)
- Refutation
- P(e);
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- S(c);CHECK,OGATE,XP(F)::R1(A),XS(c)
- S(c);CHECK,XB(I)::S(M),XS(c)
- Refutation
- B(b);N_SPINB(b),XB(K)
- Try
- Actual
- P(C);
- Threat
- QAB1(L),XS(c)
- Vars
- B(b);CHECK,OGATEB::B(K),XB(b)
- S(c);CHECK,OGATE,XP(F)::R1(A),XS(c)
- S(c);CHECK,XB(I)::S(M),XS(c)
- K(a);P_SPINS(c),S_FLIGHT::B(K),XB(b)
- B(b);N_SPINB(b),OGATE,XB(K)::QAB(L),XB(b)
- S(c);SBLOCK,XP(D)::P(B)
- S(c);OGATE::QAR1(L)
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).