MESON Chess Problem Database
Problem Display
PID: 64331 (8/p3p3/B3P3/2B1RpK1/p2NbP2/P3Rp2/2Pk4/Q2n4 w - - 0 1)
Arguelles Ferrer, Antonio Fernandez
Chess, 1946
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Kxe3
- 2.Sb3#
- 1...Bxc2
- 2.Sxf3#
- 1...Bd3
- 2.Rxd3#
- 1...Bd5
- 2.Rd3#
- 1...Bc6
- 2.Rd3#
- 1...Bb7
- 2.Rd3#
- 1...Ba8
- 2.Rd3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Qe1#
- 1...Sxe3
- 2.Bb4#
- 1...f2
- 2.Re2#
- 1...Kxe3
- Tries
- 1.Kh4?
- 1...Bxc2
- 2.Sxf3#
- 1...Sxe3
- 2.Bb4#
- 1...Bd3
- 2.Rxd3#
- 1...Bd5
- 2.Rd3#
- 1...Bc6
- 2.Rd3#
- 1...Bb7
- 2.Rd3#
- 1...Ba8
- 2.Rd3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Qe1#
- 1...f2
- 2.Re2#
- 1...Kxe3!
- 1...Bxc2
- 1.Kh5?
- 1...Bxc2
- 2.Sxf3#
- 1...Sxe3
- 2.Bb4#
- 1...Bd3
- 2.Rxd3#
- 1...Bd5
- 2.Rd3#
- 1...Bc6
- 2.Rd3#
- 1...Bb7
- 2.Rd3#
- 1...Ba8
- 2.Rd3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Qe1#
- 1...f2
- 2.Re2#
- 1...Kxe3!
- 1...Bxc2
- 1.Kg6?
- 1...Bxc2
- 2.Sxf3#
- 1...Sxe3
- 2.Bb4#
- 1...Bd3
- 2.Rxd3#
- 1...Bd5
- 2.Rd3#
- 1...Bc6
- 2.Rd3#
- 1...Bb7
- 2.Rd3#
- 1...Ba8
- 2.Rd3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Qe1#
- 1...f2
- 2.Re2#
- 1...Kxe3!
- 1...Bxc2
- 1.Kh6?
- 1...Bxc2
- 2.Sxf3#
- 1...Sxe3
- 2.Bb4#
- 1...Bd3
- 2.Rxd3#
- 1...Bd5
- 2.Rd3#
- 1...Bc6
- 2.Rd3#
- 1...Bb7
- 2.Rd3#
- 1...Ba8
- 2.Rd3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Qe1#
- 1...f2
- 2.Re2#
- 1...Kxe3!
- 1...Bxc2
- 1.Sb3+?
- 1...Kxc2
- 2.Qc1#
- 1...axb3!
- 1...Kxc2
- 1.Bb4+?
- 1...Sc3
- 2.Qe1#
- 1...Kxe3!
- 1...Sc3
- 1.Bxa7?
- 1...Kxe3
- 2.Sb3#
- 1...Bxc2
- 2.Sxf3#
- 1...Bd3
- 2.Rxd3#
- 1...Bd5
- 2.Rd3#
- 1...Bc6
- 2.Rd3#
- 1...Bb7
- 2.Rd3#
- 1...Ba8
- 2.Rd3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Qe1#
- 1...f2
- 2.Re2#
- 1...Sxe3!
- 1...Kxe3
- 1.Bxe7?
- 1...Bxc2
- 2.Sxf3#
- 1...Sxe3
- 2.Bb4#
- 1...Bd3
- 2.Rxd3#
- 1...Bd5
- 2.Rd3#
- 1...Bc6
- 2.Rd3#
- 1...Bb7
- 2.Rd3#
- 1...Ba8
- 2.Rd3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Qe1#
- 1...f2
- 2.Re2#
- 1...Kxe3!
- 1...Bxc2
- 1.R3xe4?
- 1...Sb2
- 2.Bb4#
- 2.Qe1#
- 1...Sf2
- 2.Bb4#
- 2.Qe1#
- 1...Sc3
- 2.Qe1#
- 1...Se3
- 2.Bb4#
- 1...f2
- 2.Re2#
- 1...fxe4!
- 1...Sb2
- 1.R5xe4?
- threat
- 2.Rd3#
- 1...Sxe3
- 2.Bb4#
- 1...Sb2
- 2.Bb4#
- 2.Qe1#
- 1...Sf2
- 2.Bb4#
- 2.Qe1#
- 1...fxe4!
- threat
- 1.Qb1?
- 1...Kxe3
- 2.Sb3#
- 1...Bxc2
- 2.Sxf3#
- 2.Qxc2#
- 1...Sxe3
- 2.Bb4#
- 1...Bd3
- 2.Rxd3#
- 1...Bd5
- 2.Rd3#
- 1...Bc6
- 2.Rd3#
- 1...Bb7
- 2.Rd3#
- 1...Ba8
- 2.Rd3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Qe1#
- 1...f2!
- 1...Kxe3
- 1.Qxd1+?
- 1...Kxe3
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sxf5#
- 2.Sc6#
- 2.Qe1#
- 1...Kxd1!
- 1...Kxe3
- 1.Kh4?
- Keys
- 1.Re1!
- 1...Kxe1
- 2.Sxf3#
- 1...Bxc2
- 2.Sxf3#
- 1...Bd3
- 2.Rxd1#
- 1...Bd5
- 2.Rxd1#
- 1...Bc6
- 2.Rxd1#
- 1...Bb7
- 2.Rxd1#
- 1...Ba8
- 2.Rxd1#
- 1...Sb2
- 2.Bb4#
- 1...Sf2
- 2.Bb4#
- 1...Sc3
- 2.Qc1#
- 1...Se3
- 2.Bb4#
- 1...f2
- 2.Re2#
- 1...Kxe1
- 1.Re1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(b);P_SPINB(e),S_FLIGHT,XR(D)::B(G)+S(E)
- B(e);N_GUARD,SBLOCK,XP(B)::S(E),XP(c)
- B(e);N_GUARD::R1(D),XB(e)
- B(e);N_GUARD::R1(D)
- S(a);OGATE::QAB1(A)
- S(a);N_GUARD,SBLOCK,XR(D)::B(G)
- P(c);N_GUARD::R1(D)
- Tries
- Try
- K(I);S_FLIGHT
- Vars
- B(e);N_GUARD,SBLOCK,XP(B)::S(E),XP(c)
- S(a);N_GUARD,SBLOCK,XR(D)::B(G)
- B(e);N_GUARD::R1(D),XB(e)
- B(e);N_GUARD::R1(D)
- S(a);OGATE::QAB1(A)
- P(c);N_GUARD::R1(D)
- Refutation
- K(b);P_SPINB(e),S_FLIGHT,XR(D)
- Try
- K(I);P-FLIGHT
- Vars
- B(e);N_GUARD,SBLOCK,XP(B)::S(E),XP(c)
- S(a);N_GUARD,SBLOCK,XR(D)::B(G)
- B(e);N_GUARD::R1(D),XB(e)
- B(e);N_GUARD::R1(D)
- S(a);OGATE::QAB1(A)
- P(c);N_GUARD::R1(D)
- Refutation
- K(b);P_SPINB(e),S_FLIGHT,XR(D)
- Try
- K(I);P-FLIGHT
- Vars
- B(e);N_GUARD,SBLOCK,XP(B)::S(E),XP(c)
- S(a);N_GUARD,SBLOCK,XR(D)::B(G)
- B(e);N_GUARD::R1(D),XB(e)
- B(e);N_GUARD::R1(D)
- S(a);OGATE::QAB1(A)
- P(c);N_GUARD::R1(D)
- Refutation
- K(b);P_SPINB(e),S_FLIGHT,XR(D)
- Try
- K(I);S_FLIGHT
- Vars
- B(e);N_GUARD,SBLOCK,XP(B)::S(E),XP(c)
- S(a);N_GUARD,SBLOCK,XR(D)::B(G)
- B(e);N_GUARD::R1(D),XB(e)
- B(e);N_GUARD::R1(D)
- S(a);OGATE::QAB1(A)
- P(c);N_GUARD::R1(D)
- Refutation
- K(b);P_SPINB(e),S_FLIGHT,XR(D)
- Try
- S(E);CHECK
- Vars
- K(b);P-FLIGHT,XP(B)::QAR1(A)
- Refutation
- P(d);XS(E)
- Try
- B(G);CHECK
- Vars
- S(a);OGATE,P_SPINS(a)::QAB1(A)
- Refutation
- K(b);P_SPINB(e),S_FLIGHT,XR(D)
- Try
- B(G);XP(g)
- Vars
- K(b);P_SPINB(e),S_FLIGHT,XR(D)::B(G)+S(E)
- B(e);N_GUARD,SBLOCK,XP(B)::S(E),XP(c)
- B(e);N_GUARD::R1(D),XB(e)
- B(e);N_GUARD::R1(D)
- S(a);OGATE::QAB1(A)
- P(c);N_GUARD::R1(D)
- Refutation
- S(a);XR(D)
- Try
- B(G);XP(h)
- Vars
- B(e);N_GUARD,SBLOCK,XP(B)::S(E),XP(c)
- S(a);N_GUARD,SBLOCK,XR(D)::B(G)
- B(e);N_GUARD::R1(D),XB(e)
- B(e);N_GUARD::R1(D)
- S(a);OGATE::QAB1(A)
- P(c);N_GUARD::R1(D)
- Refutation
- K(b);P_SPINB(e),S_FLIGHT,XR(D)
- Try
- R(D);XB(e)
- Vars
- S(a);OGATE,SBLOCK::QAB1(A)
- S(a);N_GUARD::B(G)
- P(c);N_GUARD::R1(D)
- Refutation
- P(f);XR(D)
- Try
- R(H);XB(e)
- Threat
- R1(D)
- Vars
- S(a);N_GUARD,XR(D)::B(G)
- Refutation
- P(f);XR(H)
- Try
- Q(A);
- Vars
- K(b);P_SPINB(e),S_FLIGHT,XR(D)::B(G)+S(E)
- S(a);N_GUARD,SBLOCK,XR(D)::B(G)
- B(e);N_GUARD::R1(D),XB(e)
- B(e);N_GUARD::R1(D)
- S(a);OGATE::QAB1(A)
- Refutation
- P(c);
- Try
- Q(A);CHECK,XS(a)
- Refutation
- K(b);P-FLIGHT,XQ(A)
- Try
- Actual
- R(D);
- Vars
- K(b);P_SPINB(e),P_SPINS(a),S_FLIGHT,XR(D)::S(E),XP(c)
- B(e);N_GUARD,SBLOCK,XP(B)::S(E),XP(c)
- B(e);::R1(D),XS(a)
- S(a);N_GUARD::B(G)
- S(a);SBLOCK::QAB1(A)
- P(c);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).