MESON Chess Problem Database
Problem Display
PID: 273065 (3QrB2/1PRB2Nb/K2n3r/2Pkp3/4R1N1/bpPp2P1/1P6/8 w - - 0 1)
Sancho, Juan Antonio
Probleemblad, 1952
#2
13 + 9
SOLUTION
- SOUND
- Sets
- 1...Kxe4
- 2.Bc6#
- 1...Rh1
- 2.Sf6#
- 1...Rh2
- 2.Sf6#
- 1...Rh3
- 2.Sf6#
- 1...Rh4
- 2.Sf6#
- 1...Rh5
- 2.Sf6#
- 1...Rf6
- 2.Sxf6#
- 1...Bxc5
- 2.Bc6#
- 1...Bxe4
- 2.Se3#
- 1...Bg6
- 2.Sf6#
- 1...Sc4+
- 2.Bc6#
- 1...Sxe4+
- 2.Be6#
- 1...Sb5+
- 2.Bc6#
- 1...Sf5+
- 2.Bc6#
- 1...Sxb7+
- 2.Bc6#
- 1...Sf7+
- 2.Bc6#
- 1...Sc8+
- 2.Bc6#
- 1...Kxe4
- Tries
- 1.Bf5?
- threat
- 2.Se3#
- 2.c4#
- 1...Rxd8
- 2.Se3#
- 1...Bxc5
- 2.c4#
- 1...Bxf5!
- threat
- 1.Bxd6?
- threat
- 2.Bc6#
- 1...Kxe4
- 2.Bc6#
- 1...Bxe4
- 2.Se3#
- 1...Rxd6+!
- threat
- 1.Ra4?
- threat
- 2.Se3#
- 1...Sc4+
- 2.Bc6#
- 1...Se4+
- 2.Bc6#
- 2.Be6#
- 1...Sb5+
- 2.Bc6#
- 2.Be6#
- 1...Sf5+
- 2.Bc6#
- 2.Be6#
- 1...Sxb7+
- 2.Bc6#
- 2.Be6#
- 1...Sf7+
- 2.Bc6#
- 2.Be6#
- 1...Sc8+
- 2.Bc6#
- 2.Be6#
- 1...Bxc5
- 2.Bc6#
- 1...e4
- 2.Rd4#
- 1...Bb4!
- threat
- 1.Rb4?
- threat
- 2.Se3#
- 1...Sc4+
- 2.Bc6#
- 1...Se4+
- 2.Bc6#
- 2.Be6#
- 1...Sb5+
- 2.Bc6#
- 2.Be6#
- 1...Sf5+
- 2.Bc6#
- 2.Be6#
- 1...Sxb7+
- 2.Bc6#
- 2.Be6#
- 1...Sf7+
- 2.Bc6#
- 2.Be6#
- 1...Sc8+
- 2.Bc6#
- 2.Be6#
- 1...e4
- 2.Rd4#
- 1...Bxb4!
- threat
- 1.Rxe5+?
- 1...Kc4
- 2.Se3#
- 1...Rxe5!
- 1...Kc4
- 1.c4+?
- 1...Sxc4+
- 2.Bc6#
- 1...Kxe4!
- 1...Sxc4+
- 1.Bf5?
- Keys
- 1.Rc4!
- threat
- 2.Se3#
- 1...Sxc4+
- 2.Bc6#
- 1...Se4+
- 2.Be6#
- 1...Sb5+
- 2.Be6#
- 1...Sf5+
- 2.Be6#
- 1...Sxb7+
- 2.Be6#
- 1...Sf7+
- 2.Be6#
- 1...Sc8+
- 2.Be6#
- 1...Kxc4
- 2.Se3#
- 1...Bxc5
- 2.R7xc5#
- 1...e4
- 2.Rd4#
- threat
- 1.Rc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- K(d);N_GUARD,S_FLIGHT,XR(D)::B(J)
- R(g);N_GUARD::S(E)
- R(g);N_GUARD::S(E),XR(g)
- B(a);SBLOCK,XP(F)::B(J)
- B(h);SBLOCK,XR(D)::S(E)
- B(h);S_CUTR(g)::S(E)
- S(f);CHECK::QAR(L)+B(J),DCHECK
- S(f);CHECK,SBLOCK,XR(D)::QAR(L)+B(J),DCHECK
- S(f);CHECK,XP(H)::QAR(L)+B(J),DCHECK
- Tries
- Try
- B(J);P_PINS(f)
- Threat
- DUALS(2)
- Vars
- R(i);N_SPINS(f),XQ(L)::S(E)
- B(a);XP(F)::P(B)
- Refutation
- B(h);XB(J)
- Try
- B(M);P_SPINB(M),XS(f)
- Threat
- B(J)
- Vars
- K(d);S_FLIGHT,XR(D)::B(J)
- B(h);SBLOCK,XR(D)::S(E)
- Refutation
- R(g);CHECK,XB(M)
- Try
- R(D);
- Threat
- S(E)
- Vars
- S(f);CHECK::QAR(L)+B(J),DCHECK
- B(a);SBLOCK,XP(F)::B(J)
- P(e);N_GUARD::R1(D)
- Refutation
- B(a);
- Try
- R(D);
- Threat
- S(E)
- Vars
- S(f);CHECK::QAR(L)+B(J),DCHECK
- P(e);N_GUARD::R1(D)
- Refutation
- B(a);XR(D)
- Try
- R(D);CHECK,XP(e)
- Vars
- K(d);N_GUARD,S_FLIGHT::S(E)
- Refutation
- R(i);XR(D)
- Try
- P(B);CHECK
- Vars
- S(f);CHECK,XP(B)::QAR(L)+B(J),DCHECK
- Refutation
- K(d);S_FLIGHT,XR(D)
- Try
- Actual
- R(D);
- Threat
- S(E)
- Vars
- S(f);CHECK,SBLOCK,XR(D)::QAR(L)+B(J),DCHECK
- S(f);CHECK::QAR(L)+B(J),DCHECK
- S(f);CHECK,XP(H)::QAR(L)+B(J),DCHECK
- K(d);S_FLIGHT,XR(D)::S(E)
- B(a);OGATE,XP(F)::R1(I),XB(a)
- P(e);N_GUARD::R1(D)
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).