MESON Chess Problem Database
Problem Display
PID: 233164 (N1k2K1R/Pp1pBNQ1/8/r4r2/b1B3pb/8/6q1/8 w - - 0 1)
Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)
Tidskrift for Schack, 1913
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Sd6#
- 1...Rc5
- 2.Sd6#
- 1...Re5
- 2.Sd6#
- 1...Rg5
- 2.Sd6#
- 1...Rh5
- 2.Sd6#
- 1...Rxf7+
- 2.Kxf7#
- 1...Bf6
- 2.Sd6#
- 1...Bxe7+
- 2.Kxe7#
- 1...Rb5
- Tries
- 1.Bf6?
- threat
- 2.Ke7#
- 2.Sd6#
- 1...Rxa7
- 2.Ke7#
- 1...Rxf6
- 2.Ke7#
- 1...b5
- 2.Sd6#
- 1...b6
- 2.Sd6#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...Qe4
- 2.Sd6#
- 1...Qd5
- 2.Ke7#
- 1...Qc6
- 2.Ke7#
- 1...Qd2
- 2.Ke7#
- 1...Qe2
- 2.Sd6#
- 1...Qh2
- 2.Ke7#
- 1...Qg3
- 2.Ke7#
- 1...Rad5
- 2.Ke7#
- 1...Rae5
- 2.Sd6#
- 1...Ra6
- 2.Ke7#
- 1...Rfd5
- 2.Ke7#
- 1...Rfe5
- 2.Sd6#
- 1...Rh5
- 2.Sd6#
- 1...Bg3
- 2.Ke7#
- 1...Bxf6!
- threat
- 1.Qe5?
- threat
- 2.Kg7#
- 2.Sb6#
- 2.Qc7#
- 2.Qb8#
- 1...Rxf7+
- 2.Kxf7#
- 1...Bxe7+
- 2.Kxe7#
- 1...Raxe5
- 2.Kg7#
- 1...Rxa7
- 2.Kg7#
- 2.Sb6#
- 2.Qc7#
- 1...Rfxe5
- 2.Kg7#
- 2.Sd6#
- 1...b5
- 2.Qc7#
- 2.Qb8#
- 1...b6
- 2.Qc7#
- 2.Qb8#
- 1...d5
- 2.Sb6#
- 2.Qc7#
- 1...Qc6
- 2.Kg7#
- 2.Qb8#
- 1...Qg1
- 2.Kg7#
- 2.Qc7#
- 2.Qb8#
- 1...Qb2
- 2.Kg7#
- 2.Qc7#
- 2.Qb8#
- 1...Qf2
- 2.Kg7#
- 2.Qc7#
- 2.Qb8#
- 1...Qh2
- 2.Kg7#
- 2.Sb6#
- 1...Qg3
- 2.Kg7#
- 2.Sb6#
- 1...Rb5
- 2.Kg7#
- 2.Qc7#
- 2.Qb8#
- 1...Rc5
- 2.Kg7#
- 2.Sb6#
- 2.Qb8#
- 1...Ra6
- 2.Kg7#
- 2.Qc7#
- 2.Qb8#
- 1...Rg5
- 2.Sd6#
- 2.Sb6#
- 2.Qc7#
- 2.Qb8#
- 1...Rh5
- 2.Sd6#
- 2.Sb6#
- 2.Qc7#
- 2.Qb8#
- 1...Rf6
- 2.Kg7#
- 2.Qc7#
- 2.Qb8#
- 1...Bf2
- 2.Kg7#
- 2.Qc7#
- 2.Qb8#
- 1...Bg3
- 2.Kg7#
- 2.Sb6#
- 1...Bf6
- 2.Sd6#
- 2.Sb6#
- 2.Qc7#
- 2.Qb8#
- 1...d6!
- threat
- 1.Bf6?
- Keys
- 1.Qc3!
- threat
- 2.Kg7#
- 1...Rxf7+
- 2.Kxf7#
- 1...Bxe7+
- 2.Kxe7#
- 1...b5
- 2.Bd5#
- 1...b6
- 2.Ba6#
- 1...d5
- 2.Bb5#
- 1...d6
- 2.Be6#
- 1...Rg5
- 2.Sd6#
- 1...Rh5
- 2.Sd6#
- 1...Bf6
- 2.Sd6#
- threat
- 1.Qc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- R(f);N_PINS(D)::S(D)
- R(f);CHECK,XS(D)::R(H)+K(G),XR(f)
- B(d);N_PINS(D)::S(D)
- B(d);CHECK,XB(C)::R(H)+K(G),XB(d)
- Tries
- Try
- B(C);N_SPINS(D)
- Threat
- DUALS(2)
- Vars
- R(e);XP(B)::R(H)+K(G)
- R(f);P_PINS(D),XB(C)::R(H)+K(G)
- P(g);::S(D)
- P(h);::S(D)
- P(h);::S(D),XP(h)
- Q(a);::S(D)
- Q(a);::R(H)+K(G)
- R(e);::R(H)+K(G)
- R(e);::S(D)
- R(f);::R(H)+K(G)
- R(f);::S(D)
- B(d);::R(H)+K(G)
- Refutation
- B(d);XB(C)
- Try
- Q(E);
- Threat
- DUALS(4)
- Vars
- R(f);CHECK,XS(D)::R(H)+K(G),XR(f)
- B(d);CHECK,XB(C)::R(H)+K(G),XB(d)
- R(e);XQ(E)::R(H)+K(G)
- Refutation
- P(h);
- Try
- Actual
- Q(E);
- Threat
- R(H)+K(G)
- Vars
- R(f);CHECK,XS(D)::R(H)+K(G),XR(f)
- B(d);CHECK,XB(C)::R(H)+K(G),XB(d)
- P(g);S_CUTB(b),S_CUTR(e)::QAR(E)+B(A)
- P(g);::QAR(E)+B(A),DCHECK
- P(h);S_CUTQ(a),S_CUTR(f)::QAR(E)+B(A)
- P(h);::QAR(E)+B(A),DCHECK
- R(f);N_PINS(D)::S(D)
- B(d);N_PINS(D)::S(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).