MESON Chess Problem Database
Problem Display
PID: 16327 (5K2/4pp1N/1B6/3p4/R2NbkB1/8/1Q4R1/4r3 w - - 0 1)
Dobbs, Gilbert S
Chess, 1940
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Ke3
- 2.Qd2#
- 1...Ke5
- 2.Bc7#
- 1...Ra1
- 2.Se2#
- 1...Rb1
- 2.Se2#
- 1...Rc1
- 2.Se2#
- 1...Rd1
- 2.Se2#
- 1...Rf1
- 2.Se2#
- 1...Rg1
- 2.Se2#
- 1...Rh1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Bb1
- 2.Se2#
- 2.Se6#
- 1...Bc2
- 2.Se2#
- 2.Se6#
- 1...Bxg2
- 2.Se2#
- 1...Bd3
- 2.Se2#
- 2.Se6#
- 1...Bf3
- 2.Se2#
- 2.Se6#
- 1...Bf5
- 2.Se2#
- 2.Se6#
- 1...Bg6
- 2.Se2#
- 2.Se6#
- 1...Bxh7
- 2.Se6#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...Ke3
- Tries
- 1.Kxf7?
- threat
- 2.Se6#
- 1...Ke3
- 2.Qd2#
- 1...Ke5
- 2.Bc7#
- 1...Bxg2
- 2.Se2#
- 1...e6
- 2.Sxe6#
- 1...Bg6+!
- threat
- 1.Sc6?
- threat
- 2.Qe5#
- 2.Qf2#
- 1...Re3
- 2.Qe5#
- 1...Rf1
- 2.Qe5#
- 2.Qd2#
- 1...Re2
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 2.Qf2#
- 1...f6
- 2.Qf2#
- 1...d4!
- threat
- 1.Bc7+?
- 1...Ke3
- 2.Qd2#
- 1...e5!
- 1...Ke3
- 1.Qc3?
- threat
- 2.Qg3#
- 1...Ke5
- 2.Bc7#
- 2.Qg3#
- 2.Qc7#
- 1...Bxg2
- 2.Se2#
- 2.Se6#
- 1...Bxh7
- 2.Se6#
- 1...Bb1
- 2.Se2#
- 2.Se6#
- 1...Bc2
- 2.Se2#
- 2.Se6#
- 1...Bd3
- 2.Se2#
- 2.Se6#
- 1...Bf3
- 2.Se2#
- 2.Se6#
- 1...Bf5
- 2.Se2#
- 2.Se6#
- 1...Bg6
- 2.Se2#
- 2.Se6#
- 1...Re3!
- threat
- 1.Qd2+?
- 1...Ke5
- 2.Bc7#
- 1...Re3!
- 1...Ke5
- 1.Qf2+?
- 1...Ke5
- 2.Bc7#
- 2.Qg3#
- 1...Bf3!
- 1...Ke5
- 1.Kxf7?
- Keys
- 1.Kxe7!
- 1...Bb1+
- 2.Se2#
- 2.Se6#
- 1...Bc2+
- 2.Se2#
- 2.Se6#
- 1...Bxg2+
- 2.Se2#
- 1...Bd3+
- 2.Se2#
- 2.Se6#
- 1...Bf3+
- 2.Se2#
- 2.Se6#
- 1...Bf5+
- 2.Se2#
- 2.Se6#
- 1...Bg6+
- 2.Se2#
- 2.Se6#
- 1...Bxh7+
- 2.Se6#
- 1...Ke3
- 2.Qd2#
- 1...Ke5
- 2.Bc7#
- 1...Ra1
- 2.Se2#
- 1...Rb1
- 2.Se2#
- 1...Rc1
- 2.Se2#
- 1...Rd1
- 2.Se2#
- 1...Rf1
- 2.Se2#
- 1...Rg1
- 2.Se2#
- 1...Rh1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Re3
- 2.Bc7#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...Bb1+
- 1.Kxe7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(c);S_FLIGHT::QAB1(A)
- K(c);S_FLIGHT::B(F)
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::S(D),XR(a)
- B(b);XR(B)::R(C)+S(D),DCHECK
- B(b);XS(G)::R(C)+S(D),DCHECK
- P(f);N_GUARD::S(D)
- Tries
- Try
- K(H);P-FLIGHT,XP(f)
- Threat
- S(D)
- Vars
- K(c);S_FLIGHT::QAB1(A)
- K(c);S_FLIGHT::B(F)
- B(b);XR(B)::R(C)+S(D),DCHECK
- P(e);::S(D),XP(e)
- Refutation
- B(b);CHECK
- Try
- S(D);P_PINB(b)
- Threat
- DUALS(2)
- Vars
- R(a);::QAB1(A)
- P(f);::QAR2(A)
- Refutation
- P(d);N_SPINB(b)
- Try
- B(F);CHECK
- Vars
- K(c);S_FLIGHT::QAB1(A)
- Refutation
- P(e);P_SPINP(e)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- B(b);XS(G)::R(C)+S(D),DCHECK
- Refutation
- R(a);
- Try
- Q(A);CHECK
- Vars
- K(c);S_FLIGHT::B(F)
- Refutation
- R(a);P_SPINR(a)
- Try
- Q(A);CHECK
- Refutation
- B(b);P_SPINB(b)
- Try
- Actual
- K(H);S_FLIGHT,XP(e)
- Vars
- B(b);CHECK,XR(B)::R(C)+S(D),DCHECK
- B(b);CHECK,XS(G)::R(C)+S(D),DCHECK
- K(c);S_FLIGHT::QAB1(A)
- K(c);S_FLIGHT::B(F)
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::S(D),XR(a)
- R(a);SBLOCK::B(F)
- P(f);N_GUARD::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).