MESON Chess Problem Database
Problem Display
PID: 170002 (3R4/p3p1B1/3PPnb1/1RN1bqN1/3kP1Q1/1K1Bp1p1/2P1P3/3n4 w - - 0 1)
Salamanca, Tomas
Comm., Enroque!!, 1946
#2
13 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxe6+
- 2.Scxe6#
- 2.Sgxe6#
- 1...Qf3
- 2.Sxf3#
- 1...Bf4
- 2.Sf3#
- 1...Sb2
- 2.c3#
- 1...Sf2
- 2.c3#
- 1...Sxe4
- 2.dxe7#
- 1...Sxg4
- 2.dxe7#
- 1...Sh5
- 2.dxe7#
- 1...Sh7
- 2.dxe7#
- 1...Sg8
- 2.dxe7#
- 1...Qxe6+
- Tries
- 1.Sa4?
- threat
- 2.Rb4#
- 1...Qxe6+
- 2.Sxe6#
- 1...Qxe4
- 2.Sf3#
- 1...Bxd6
- 2.exf5#
- 1...Sxe4
- 2.dxe7#
- 1...Bf4
- 2.Sf3#
- 1...Sb2
- 2.c3#
- 1...Sd5
- 2.Rxd5#
- 1...a5!
- threat
- 1.Sb7?
- threat
- 2.Rb4#
- 1...Qxe6+
- 2.Sxe6#
- 1...Qxe4
- 2.Sf3#
- 1...Bxd6
- 2.exf5#
- 1...Sxe4
- 2.dxe7#
- 1...Bf4
- 2.Sf3#
- 1...Sb2
- 2.c3#
- 1...Sd5
- 2.Rxd5#
- 1...a5!
- threat
- 1.Qxf5?
- threat
- 2.Sf3#
- 1...Sxe4
- 2.Qxe5#
- 1...Bh5!
- threat
- 1.dxe7+?
- 1...Sd5
- 2.Rxd5#
- 2.exf5#
- 1...Sd7
- 2.Rxd7#
- 1...Bd6!
- 1...Sd5
- 1.Sa4?
- Keys
- 1.Sa6!
- threat
- 2.Rb4#
- 1...Qxe6+
- 2.Sxe6#
- 1...Qxe4
- 2.Sf3#
- 1...Bxd6
- 2.exf5#
- 1...Sxe4
- 2.dxe7#
- 1...Bf4
- 2.Sf3#
- 1...Sb2
- 2.c3#
- 1...Sd5
- 2.Rxd5#
- threat
- 1.Sa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- Q(f);N_GUARD::S(I),XQ(f)
- B(e);P_SPINS(g),S_CUTQ(f)::S(I)
- S(a);N_GUARD::P(A)
- S(g);N_GUARD,P_SPINB(e),P_SPINS(g),XP(E)::R(M)+P(J),XP(j)
- S(g);N_GUARD,P_SPINB(e),XQ(F)::R(M)+P(J),XP(j)
- S(g);N_GUARD,P_SPINB(e)::R(M)+P(J),XP(j)
- Tries
- Try
- S(H);
- Threat
- R(G)
- Vars
- Q(f);CHECK,XP(K)::S(I),XQ(f)
- Q(f);N_GUARD,P_SPINQ(f),XP(E)::S(I)
- B(e);N_GUARD,P_SPINB(e),P_SPINS(g),XP(J)::QAR(F)+P(E),XQ(f)
- S(g);N_GUARD,P_SPINB(e),P_SPINS(g),XP(E)::R(M)+P(J),XP(j)
- B(e);P_SPINS(g),S_CUTQ(f)::S(I)
- S(a);N_GUARD::P(A)
- S(g);N_GUARD,P_SPINB(e)::R1(G),XS(g)
- Refutation
- P(i);
- Try
- S(H);
- Threat
- R(G)
- Vars
- Q(f);CHECK,XP(K)::S(I),XQ(f)
- Q(f);N_GUARD,P_SPINQ(f),XP(E)::S(I)
- B(e);N_GUARD,P_SPINB(e),P_SPINS(g),XP(J)::QAR(F)+P(E),XQ(f)
- S(g);N_GUARD,P_SPINB(e),P_SPINS(g),XP(E)::R(M)+P(J),XP(j)
- B(e);P_SPINS(g),S_CUTQ(f)::S(I)
- S(a);N_GUARD::P(A)
- S(g);N_GUARD,P_SPINB(e)::R1(G),XS(g)
- Refutation
- P(i);
- Try
- Q(F);XQ(f)
- Threat
- S(I)
- Vars
- S(g);P_SPINB(e),XP(E)::QAB1(F),XB(e)
- Refutation
- B(h);
- Try
- P(J);CHECK,XP(j)
- Vars
- S(g);N_GUARD,P_SPINB(e),P_SPINS(g)::R(M),XS(g)
- Refutation
- B(e);P_SPINB(e),P_SPINS(g)
- Try
- Actual
- S(H);
- Threat
- R(G)
- Vars
- Q(f);CHECK,XP(K)::S(I),XQ(f)
- Q(f);N_GUARD,P_SPINQ(f),XP(E)::S(I)
- B(e);N_GUARD,P_SPINB(e),P_SPINS(g),XP(J)::QAR(F)+P(E),XQ(f)
- S(g);N_GUARD,P_SPINB(e),P_SPINS(g),XP(E)::R(M)+P(J),XP(j)
- B(e);P_SPINS(g),S_CUTQ(f)::S(I)
- S(a);N_GUARD::P(A)
- S(g);N_GUARD,P_SPINB(e)::R1(G),XS(g)
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).