MESON Chess Problem Database
Problem Display
PID: 76538 (6K1/6PN/4p2p/4Rp1k/5Qn1/8/5PRn/8 w - - 0 1)
Cafferata, Louis William
The Tablet, 1934
(First published on Sat Jan 20 1934)
#2
7 + 6
| 15239 | Valois Notebooks | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Kh4
- 2.Rxh2#
- 1...Sf1
- 2.Qxg4#
- 1...Sf3
- 2.Qxg4#
- 1...Sxf2
- 2.Sf6#
- 1...Se3
- 2.Sf6#
- 2.Qxh2#
- 1...Sxe5
- 2.Sf6#
- 2.Qxh2#
- 1...Sf6+
- 2.Sxf6#
- 1...Kh4
- Tries
- 1.Kf7?
- 1...Kh4
- 2.Rxh2#
- 1...Sxf2
- 2.Sf6#
- 1...Sf1
- 2.Qxg4#
- 1...Sf3
- 2.Qxg4#
- 1...Se3
- 2.Sf6#
- 2.Rxh2#
- 2.Qxh2#
- 1...Sf6
- 2.Sxf6#
- 2.Rxh2#
- 2.Qxh2#
- 1...Sxe5+!
- 1...Kh4
- 1.Kf8?
- 1...Kh4
- 2.Rxh2#
- 1...Sxf2
- 2.Sf6#
- 1...Sxe5
- 2.Sf6#
- 2.Qxh2#
- 1...Sf1
- 2.Qxg4#
- 1...Sf3
- 2.Qxg4#
- 1...Se3
- 2.Sf6#
- 2.Qxh2#
- 1...Sf6
- 2.Sxf6#
- 2.Qxh2#
- 1...Kg6!
- 1...Kh4
- 1.Kh8?
- 1...Kh4
- 2.Rxh2#
- 1...Sxf2
- 2.Sf6#
- 1...Sxe5
- 2.Sf6#
- 2.Qxh2#
- 1...Sf1
- 2.Qxg4#
- 1...Sf3
- 2.Qxg4#
- 1...Se3
- 2.Sf6#
- 2.Qxh2#
- 1...Sf6
- 2.Sxf6#
- 2.Qxh2#
- 1...Kg6!
- 1...Kh4
- 1.Rxf5+?
- 1...Kh4
- 2.Rxh2#
- 2.Qg3#
- 1...Kg6
- 2.Sf8#
- 1...exf5!
- 1...Kh4
- 1.Qxh2+?
- 1...Kg6
- 2.Rxe6#
- 1...Sxh2!
- 1...Kg6
- 1.Qg3?
- 1...Sf6+
- 2.Sxf6#
- 1...Sxf2
- 2.Sf6#
- 1...Sxe5
- 2.Sf6#
- 2.Rxh2#
- 2.Qxh2#
- 2.Qh3#
- 1...Sf1
- 2.Qxg4#
- 1...Sf3
- 2.Qxg4#
- 1...Se3
- 2.Sf6#
- 2.Rxh2#
- 2.Qxh2#
- 2.Qh3#
- 1...Kg6!
- 1...Sf6+
- 1.Qb4?
- 1...Sf6+
- 2.Sxf6#
- 1...Kh4
- 2.Rxh2#
- 1...Sxf2
- 2.Sf6#
- 1...Sxe5
- 2.Sf6#
- 1...Sf1
- 2.Qxg4#
- 1...Sf3
- 2.Qxg4#
- 1...Se3
- 2.Sf6#
- 1...Kg6!
- 1...Sf6+
- 1.Qc4?
- 1...Sf6+
- 2.Sxf6#
- 1...Kh4
- 2.Rxh2#
- 1...Sxf2
- 2.Sf6#
- 1...Sxe5
- 2.Sf6#
- 1...Sf1
- 2.Qxg4#
- 1...Sf3
- 2.Qxg4#
- 1...Se3
- 2.Sf6#
- 1...Kg6!
- 1...Sf6+
- 1.Qd4?
- 1...Sf6+
- 2.Sxf6#
- 1...Kh4
- 2.Rxh2#
- 1...Sxf2
- 2.Sf6#
- 1...Sxe5
- 2.Sf6#
- 1...Sf1
- 2.Qxg4#
- 1...Sf3
- 2.Qxg4#
- 1...Se3
- 2.Sf6#
- 1...Kg6!
- 1...Sf6+
- 1.Qe4?
- 1...Sf6+
- 2.Sxf6#
- 1...Kh4
- 2.Rxh2#
- 1...Sxf2
- 2.Sf6#
- 1...Sxe5
- 2.Sf6#
- 1...Sf1
- 2.Qxg4#
- 1...Sf3
- 2.Qxg4#
- 1...Se3
- 2.Sf6#
- 1...Kg6!
- 1...Sf6+
- 1.Qxf5+?
- 1...Kh4
- 2.Qh5#
- 1...exf5!
- 1...Kh4
- 1.f3?
- 1...Sf6+
- 2.Sxf6#
- 1...Kh4
- 2.Rxh2#
- 1...Sxf3
- 2.Qxg4#
- 1...Sxe5
- 2.Sf6#
- 2.Qxh2#
- 1...Sf1
- 2.Qxg4#
- 1...Sf2
- 2.Sf6#
- 1...Se3
- 2.Sf6#
- 2.Qxh2#
- 1...Kg6!
- 1...Sf6+
- 1.Kf7?
- Keys
- 1.Qa4!
- 1...Sf6+
- 2.Sxf6#
- 1...Kh4
- 2.Rxh2#
- 1...Kg6
- 2.Qe8#
- 1...Sxf2
- 2.Sf6#
- 1...Sxe5
- 2.Sf6#
- 1...Sf1
- 2.Qxg4#
- 1...Sf3
- 2.Qxg4#
- 1...Se3
- 2.Sf6#
- 1...Sf6+
- 1.Qa4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(b)::R(B),XS(a)
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);N_GUARD,XP(A)::S(F)
- S(b);CHECK,N_GUARD::S(F),XS(b)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(b)::R(B),XS(a)
- S(b);N_GUARD,XP(A)::S(F)
- S(a);N_GUARD::QAB1(C),XS(b)
- Refutation
- S(b);CHECK,N_SPINP(c),XR(D)
- Try
- K(G);P-FLIGHT
- Vars
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(b)::R(B),XS(a)
- S(b);N_GUARD,XP(A)::S(F)
- S(a);N_GUARD::QAB1(C),XS(b)
- Refutation
- K(d);N_SPINP(c),P_SPINS(b),S_FLIGHT
- Try
- K(G);P-FLIGHT
- Vars
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(b)::R(B),XS(a)
- S(b);N_GUARD,XP(A)::S(F)
- S(a);N_GUARD::QAB1(C),XS(b)
- Refutation
- K(d);N_SPINP(c),P_SPINS(b),S_FLIGHT
- Try
- R(D);CHECK,XP(c)
- Vars
- K(d);P_SPINS(b),S_FLIGHT::S(F)
- Refutation
- P(e);XR(D)
- Try
- Q(C);CHECK,XS(a)
- Vars
- K(d);N_SPINP(c),P_SPINS(b),S_FLIGHT::R(D),XP(e)
- Refutation
- S(b);XQ(C)
- Try
- Q(C);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- S(b);N_GUARD,XP(A)::S(F)
- S(a);N_GUARD::QAB1(C),XS(b)
- Refutation
- K(d);N_SPINP(c),P_SPINS(b),S_FLIGHT
- Try
- Q(C);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(b)::R(B),XS(a)
- S(b);N_GUARD,XP(A)::S(F)
- S(b);N_GUARD,N_SPINP(c),XR(D)::S(F)
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- K(d);N_SPINP(c),P_SPINS(b),S_FLIGHT
- Try
- Q(C);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(b)::R(B),XS(a)
- S(b);N_GUARD,XP(A)::S(F)
- S(b);N_GUARD,N_SPINP(c),XR(D)::S(F)
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- K(d);N_SPINP(c),P_SPINS(b),S_FLIGHT
- Try
- Q(C);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(b)::R(B),XS(a)
- S(b);N_GUARD,XP(A)::S(F)
- S(b);N_GUARD,N_SPINP(c),XR(D)::S(F)
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- K(d);N_SPINP(c),P_SPINS(b),S_FLIGHT
- Try
- Q(C);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(b)::R(B),XS(a)
- S(b);N_GUARD,XP(A)::S(F)
- S(b);N_GUARD,N_SPINP(c),XR(D)::S(F)
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- K(d);P_SPINS(b),S_FLIGHT
- Try
- Q(C);CHECK,XP(c)
- Vars
- K(d);P-FLIGHT::QAR1(C)
- Refutation
- P(e);P_SPINP(e),XQ(C)
- Try
- P(A);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(b)::R(B),XS(a)
- S(a);N_GUARD,XP(A)::QAB1(C),XS(b)
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- K(d);N_SPINP(c),P_SPINS(b),S_FLIGHT
- Try
- Actual
- Q(C);
- Vars
- S(b);CHECK,N_GUARD::S(F),XS(b)
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(b)::R(B),XS(a)
- K(d);N_SPINP(c),P_SPINS(b),S_FLIGHT::QAB(C)
- S(b);N_GUARD,XP(A)::S(F)
- S(b);N_GUARD,N_SPINP(c),XR(D)::S(F)
- S(a);N_GUARD::QAB1(C),XS(b)
- S(b);N_GUARD::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).