MESON Chess Problem Database
Problem Display
PID: 170029 (8/6Q1/4pBp1/R2n1k1N/4bb2/3p1n1P/6N1/5R1K w - - 0 1)
Santiago, Joao Baptista
Enroque!!, 1946
#2
8 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Sh4#
- 2.Sg3#
- 1...Bd2
- 2.Sh4#
- 2.Sg3#
- 1...Bh2
- 2.Se3#
- 2.Sh4#
- 1...Be3
- 2.Sxe3#
- 2.Sh4#
- 2.Sg3#
- 1...Bg3
- 2.Se3#
- 2.Sxg3#
- 1...Be5
- 2.Sh4#
- 1...Bg5
- 2.Sg3#
- 1...Bd6
- 2.Se3#
- 2.Sh4#
- 1...Bh6
- 2.Sh4#
- 2.Sg3#
- 1...Bc7
- 2.Se3#
- 2.Sh4#
- 1...Bb8
- 2.Se3#
- 2.Sh4#
- 1...Se1
- 2.Sg3#
- 2.Rxf4#
- 1...Sg1
- 2.Sg3#
- 2.Rxf4#
- 1...Sd2
- 2.Sg3#
- 2.Rxf4#
- 1...Sh2
- 2.Sg3#
- 2.Rxf4#
- 1...Sd4
- 2.Sg3#
- 2.Rxf4#
- 1...Sh4
- 2.Sg3#
- 2.Rxf4#
- 1...Se5
- 2.Sg3#
- 1...Sg5
- 2.Sg3#
- 2.Rxf4#
- 1...e5
- 2.Qd7#
- 1...g5
- 2.Qh7#
- 1...Bc1
- Tries
- 1.Bh4?
- threat
- 2.Qf6#
- 1...e5
- 2.Qd7#
- 1...Bg5
- 2.Sg3#
- 1...Se5
- 2.Sg3#
- 1...Be5!
- threat
- 1.Be7?
- threat
- 2.Qf6#
- 1...Be5
- 2.Sh4#
- 1...Bg5
- 2.Sg3#
- 1...Se5
- 2.Sg3#
- 1...e5!
- threat
- 1.Rxf3?
- threat
- 2.Se3#
- 2.Sh4#
- 2.Sg3#
- 2.Rxf4#
- 1...gxh5
- 2.Se3#
- 2.Sh4#
- 2.Rxf4#
- 2.Qg5#
- 1...e5
- 2.Qd7#
- 1...g5
- 2.Se3#
- 2.Sg3#
- 2.Qxg5#
- 2.Qh7#
- 1...Bxf3!
- threat
- 1.Rxd5+?
- 1...Be5
- 2.Se3#
- 2.Sh4#
- 2.Sg3#
- 2.Rxe5#
- 1...Se5
- 2.Sg3#
- 2.Rxf4#
- 2.Rxe5#
- 1...exd5
- 2.Qd7#
- 1...e5
- 2.Qd7#
- 1...Bxd5!
- 1...Be5
- 1.Qc7?
- threat
- 2.Qxf4#
- 1...Bxc7
- 2.Se3#
- 2.Sh4#
- 1...e5
- 2.Qd7#
- 2.Qc8#
- 1...g5
- 2.Qh7#
- 1...Bc1
- 2.Sh4#
- 2.Qe5#
- 1...Bd2
- 2.Sh4#
- 2.Qe5#
- 1...Bh2
- 2.Se3#
- 2.Sh4#
- 1...Be3
- 2.Sxe3#
- 2.Sh4#
- 2.Qe5#
- 1...Bg3
- 2.Se3#
- 1...Be5
- 2.Sh4#
- 2.Qxe5#
- 1...Bg5
- 2.Qe5#
- 1...Bd6
- 2.Se3#
- 2.Sh4#
- 1...Bh6
- 2.Sh4#
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...gxh5!
- threat
- 1.Qe7?
- threat
- 2.Sg7#
- 1...g5
- 2.Qh7#
- 1...Bh6
- 2.Sh4#
- 2.Sg3#
- 1...gxh5!
- threat
- 1.Qf7?
- threat
- 2.Sg7#
- 1...Bh6
- 2.Sh4#
- 2.Sg3#
- 1...gxh5!
- threat
- 1.Bh4?
- Keys
- 1.Bd8!
- threat
- 2.Qf6#
- 1...e5
- 2.Qd7#
- 1...Be5
- 2.Sh4#
- 1...Bg5
- 2.Sg3#
- 1...Se5
- 2.Sg3#
- threat
- 1.Bd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- B(d);N_SPINS(e),P_SPINS(b)::S(C)
- B(d);N_GUARD,N_SPINS(e),P_SPINS(b)::S(F)
- S(b);N_SPINS(e),P_PINS(C),P_SPINB(d)::S(F)
- P(g);N_SPINS(e),OGATEB::QAB(H)
- P(h);OGATEB::QAB(H)
- Tries
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- P(g);N_SPINS(e),OGATEB,SBLOCK::QAB(H)
- B(d);N_GUARD,N_SPINS(e),P_SPINS(b)::S(F)
- S(b);N_SPINS(e),P_PINS(C),P_SPINB(d)::S(F)
- Refutation
- B(d);N_SPINS(e),P_SPINS(b)
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- B(d);N_SPINS(e),P_SPINS(b)::S(C)
- B(d);N_GUARD,N_SPINS(e),P_SPINS(b)::S(F)
- S(b);N_SPINS(e),P_PINS(C),P_SPINB(d)::S(F)
- Refutation
- P(g);N_SPINS(e)
- Try
- R(A);P_PINB(d),XS(b)
- Threat
- DUALS(4)
- Vars
- P(g);N_SPINS(e),OGATEB::QAB(H)
- Refutation
- B(c);N_SPINB(d),P_PINS(C),XR(A)
- Try
- R(E);CHECK,XS(e)
- Vars
- P(g);S_CUTB(c),S_CUTB(d),S_CUTS(b),XR(E)::QAB(H)
- P(g);P_SPINP(g),S_CUTB(c),S_CUTB(d),S_CUTS(b)::QAB(H)
- Refutation
- B(c);XR(E)
- Try
- Q(H);
- Threat
- QAR1(H),XB(d)
- Vars
- P(h);OGATEB::QAB(H)
- B(d);N_GUARD,N_SPINS(e),P_SPINS(b)::S(C)
- B(d);N_GUARD,N_SPINS(e),P_SPINS(b)::QAR1(H)
- S(b);N_GUARD,N_SPINS(e),P_PINS(C),P_SPINB(d)::QAR1(H),XS(b)
- Refutation
- P(h);XS(F)
- Try
- Q(H);
- Threat
- S(F)
- Vars
- P(h);OGATEB::QAB(H)
- Refutation
- P(h);XS(F)
- Try
- Q(H);
- Threat
- S(F)
- Refutation
- P(h);XS(F)
- Try
- Actual
- B(G);
- Threat
- QAR1(H)
- Vars
- P(g);N_SPINS(e),OGATEB,SBLOCK::QAB(H)
- B(d);N_SPINS(e),P_SPINS(b)::S(C)
- B(d);N_GUARD,N_SPINS(e),P_SPINS(b)::S(F)
- S(b);N_SPINS(e),P_PINS(C),P_SPINB(d)::S(F)
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).