MESON Chess Problem Database
Problem Display
PID: 141975 (K7/8/4p3/4Bpp1/1N3rn1/p4nQN/Rb6/7k w - - 0 1)
Lawton, Howard
British Chess Magazine, 1941
#2
6 + 9
| 14867 | BCPS Library | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Rxb4
- 2.Qxf3#
- 1...Rc4
- 2.Qxf3#
- 1...Rd4
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Ba1
- 2.Qg2#
- 1...Bc1
- 2.Qg2#
- 1...Bc3
- 2.Qg2#
- 1...Bd4
- 2.Qg2#
- 1...Bxe5
- 2.Qg2#
- 1...Se1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sd2
- 2.Qg1#
- 1...Sfh2
- 2.Qg1#
- 1...Sd4
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sfxe5
- 2.Qg1#
- 1...Sf2
- 2.Sxf2#
- 1...Sgh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Sgxe5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Rxb4
- Tries
- 1.Ka7?
- 1...Rxb4
- 2.Qxf3#
- 1...Bxe5
- 2.Qg2#
- 1...Sfxe5
- 2.Qg1#
- 1...Sgxe5
- 2.Sf2#
- 1...Rc4
- 2.Qxf3#
- 1...Rd4
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Ba1
- 2.Qg2#
- 1...Bc1
- 2.Qg2#
- 1...Bc3
- 2.Qg2#
- 1...Se1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sd2
- 2.Qg1#
- 1...Sfh2
- 2.Qg1#
- 1...Sd4
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sf2
- 2.Sxf2#
- 1...Sgh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Bd4+!
- 1...Rxb4
- 1.Kb7?
- 1...Bxe5
- 2.Qg2#
- 1...Sfxe5
- 2.Qg1#
- 1...Sgxe5
- 2.Sf2#
- 1...Rc4
- 2.Qxf3#
- 1...Rd4
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Ba1
- 2.Qg2#
- 1...Bc1
- 2.Qg2#
- 1...Bc3
- 2.Qg2#
- 1...Bd4
- 2.Qg2#
- 1...Se1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sd2
- 2.Qg1#
- 1...Sfh2
- 2.Qg1#
- 1...Sd4
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sf2
- 2.Sxf2#
- 1...Sgh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Rxb4+!
- 1...Bxe5
- 1.Sd3?
- 1...Bxe5
- 2.Qg2#
- 1...Sfxe5
- 2.Qg1#
- 1...Sgxe5
- 2.Sdf2#
- 2.Shf2#
- 1...Rb4
- 2.Qxf3#
- 1...Rc4
- 2.Qxf3#
- 1...Rd4
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Ba1
- 2.Qg2#
- 1...Bc1
- 2.Qg2#
- 1...Bc3
- 2.Qg2#
- 1...Bd4
- 2.Qg2#
- 1...Se1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sd2
- 2.Qg1#
- 1...Sfh2
- 2.Qg1#
- 1...Sd4
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sf2
- 2.Sdxf2#
- 2.Shxf2#
- 1...Sgh2
- 2.Sdf2#
- 2.Shf2#
- 1...Se3
- 2.Sdf2#
- 2.Shf2#
- 1...Sf6
- 2.Sdf2#
- 2.Shf2#
- 1...Sh6
- 2.Sdf2#
- 2.Shf2#
- 1...Ra4+!
- 1...Bxe5
- 1.Sc6?
- 1...Bxe5
- 2.Qg2#
- 1...Sfxe5
- 2.Qg1#
- 1...Sgxe5
- 2.Sf2#
- 1...Rb4
- 2.Qxf3#
- 1...Rc4
- 2.Qxf3#
- 1...Rd4
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Ba1
- 2.Qg2#
- 1...Bc1
- 2.Qg2#
- 1...Bc3
- 2.Qg2#
- 1...Bd4
- 2.Qg2#
- 1...Se1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sd2
- 2.Qg1#
- 1...Sfh2
- 2.Qg1#
- 1...Sd4
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sf2
- 2.Sxf2#
- 1...Sgh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Ra4+!
- 1...Bxe5
- 1.Bxf4?
- threat
- 2.Qxf3#
- 1...Se1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sd2
- 2.Qg1#
- 1...Sfh2
- 2.Qg1#
- 1...Sd4
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sfe5
- 2.Qg1#
- 1...Sgh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Sge5
- 2.Sf2#
- 1...gxf4!
- threat
- 1.Bd6?
- 1...Rxb4
- 2.Qxf3#
- 1...Rc4
- 2.Qxf3#
- 1...Rd4
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Ba1
- 2.Qg2#
- 1...Bc1
- 2.Qg2#
- 1...Bc3
- 2.Qg2#
- 1...Bd4
- 2.Qg2#
- 1...Be5
- 2.Qg2#
- 1...Bf6
- 2.Qg2#
- 1...Bg7
- 2.Qg2#
- 1...Bh8
- 2.Qg2#
- 1...Se1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sd2
- 2.Qg1#
- 1...Sfh2
- 2.Qg1#
- 1...Sd4
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sfe5
- 2.Qg1#
- 1...Sf2
- 2.Sxf2#
- 1...Sgh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Sge5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...e5!
- 1...Rxb4
- 1.Bc7?
- 1...Rxb4
- 2.Qxf3#
- 1...Rc4
- 2.Qxf3#
- 1...Rd4
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Ba1
- 2.Qg2#
- 1...Bc1
- 2.Qg2#
- 1...Bc3
- 2.Qg2#
- 1...Bd4
- 2.Qg2#
- 1...Be5
- 2.Qg2#
- 1...Bf6
- 2.Qg2#
- 1...Bg7
- 2.Qg2#
- 1...Bh8
- 2.Qg2#
- 1...Se1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sd2
- 2.Qg1#
- 1...Sfh2
- 2.Qg1#
- 1...Sd4
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sfe5
- 2.Qg1#
- 1...Sf2
- 2.Sxf2#
- 1...Sgh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Sge5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...e5!
- 1...Rxb4
- 1.Bb8?
- 1...Rxb4
- 2.Qxf3#
- 1...Rc4
- 2.Qxf3#
- 1...Rd4
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Ba1
- 2.Qg2#
- 1...Bc1
- 2.Qg2#
- 1...Bc3
- 2.Qg2#
- 1...Bd4
- 2.Qg2#
- 1...Be5
- 2.Qg2#
- 1...Bf6
- 2.Qg2#
- 1...Bg7
- 2.Qg2#
- 1...Bh8
- 2.Qg2#
- 1...Se1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sd2
- 2.Qg1#
- 1...Sfh2
- 2.Qg1#
- 1...Sd4
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sfe5
- 2.Qg1#
- 1...Sf2
- 2.Sxf2#
- 1...Sgh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Sge5
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...e5!
- 1...Rxb4
- 1.Rxb2?
- threat
- 2.Qg2#
- 1...Se1
- 2.Qg1#
- 1...Sd2
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sf2
- 2.Sxf2#
- 1...Se3
- 2.Sf2#
- 1...axb2!
- threat
- 1.Ka7?
- Keys
- 1.Sa6!
- 1...Bxe5
- 2.Qg2#
- 1...Sfxe5
- 2.Qg1#
- 1...Sgxe5
- 2.Sf2#
- 1...Ra4
- 2.Qxf3#
- 1...Rb4
- 2.Qxf3#
- 1...Rc4
- 2.Qxf3#
- 1...Rd4
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Ba1
- 2.Qg2#
- 1...Bc1
- 2.Qg2#
- 1...Bc3
- 2.Qg2#
- 1...Bd4
- 2.Qg2#
- 1...Se1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sd2
- 2.Qg1#
- 1...Sfh2
- 2.Qg1#
- 1...Sd4
- 2.Qg1#
- 1...Sh4
- 2.Qg1#
- 1...Sf2
- 2.Sxf2#
- 1...Sgh2
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Sf6
- 2.Sf2#
- 1...Sh6
- 2.Sf2#
- 1...Bxe5
- 1.Sa6!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD,XS(D)::QAB(B),XS(d)
- R(e);N_GUARD::QAB(B),XS(d)
- B(b);::QAB1(B)
- B(b);XB(E)::QAB1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- S(d);N_GUARD,XB(E)::QAR1(B)
- S(f);N_GUARD::S(C),XS(f)
- S(f);N_GUARD::S(C)
- S(f);N_GUARD,XB(E)::S(C)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- R(e);N_GUARD,XS(D)::QAB(B),XS(d)
- B(b);XB(E)::QAB1(B)
- S(d);N_GUARD,XB(E)::QAR1(B)
- S(f);N_GUARD,XB(E)::S(C)
- R(e);N_GUARD::QAB(B),XS(d)
- B(b);::QAB1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- S(f);N_GUARD::S(C),XS(f)
- S(f);N_GUARD::S(C)
- Refutation
- B(b);CHECK
- Try
- K(F);S_FLIGHT
- Vars
- B(b);XB(E)::QAB1(B)
- S(d);N_GUARD,XB(E)::QAR1(B)
- S(f);N_GUARD,XB(E)::S(C)
- R(e);N_GUARD::QAB(B),XS(d)
- B(b);::QAB1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- S(f);N_GUARD::S(C),XS(f)
- S(f);N_GUARD::S(C)
- Refutation
- R(e);CHECK,XS(D)
- Try
- S(D);
- Vars
- B(b);XB(E)::QAB1(B)
- S(d);N_GUARD,XB(E)::QAR1(B)
- R(e);N_GUARD::QAB(B),XS(d)
- B(b);::QAB1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- Refutation
- R(e);CHECK
- Try
- S(D);
- Vars
- B(b);XB(E)::QAB1(B)
- S(d);N_GUARD,XB(E)::QAR1(B)
- S(f);N_GUARD,XB(E)::S(C)
- R(e);N_GUARD::QAB(B),XS(d)
- B(b);::QAB1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- S(f);N_GUARD::S(C),XS(f)
- S(f);N_GUARD::S(C)
- Refutation
- R(e);CHECK
- Try
- B(E);XR(e)
- Threat
- QAB(B),XS(d)
- Vars
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- S(f);N_GUARD::S(C)
- Refutation
- P(h);XB(E)
- Try
- B(E);
- Vars
- R(e);N_GUARD,XS(D)::QAB(B),XS(d)
- R(e);N_GUARD::QAB(B),XS(d)
- B(b);::QAB1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- S(f);N_GUARD::S(C),XS(f)
- S(f);N_GUARD::S(C)
- Refutation
- P(i);
- Try
- B(E);
- Vars
- R(e);N_GUARD,XS(D)::QAB(B),XS(d)
- R(e);N_GUARD::QAB(B),XS(d)
- B(b);::QAB1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- S(f);N_GUARD::S(C),XS(f)
- S(f);N_GUARD::S(C)
- Refutation
- P(i);
- Try
- B(E);
- Vars
- R(e);N_GUARD,XS(D)::QAB(B),XS(d)
- R(e);N_GUARD::QAB(B),XS(d)
- B(b);::QAB1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- S(f);N_GUARD::S(C),XS(f)
- S(f);N_GUARD::S(C)
- Refutation
- P(i);
- Try
- R(A);XB(b)
- Threat
- QAB1(B)
- Vars
- S(d);N_GUARD::QAR1(B)
- S(f);N_GUARD::S(C),XS(f)
- S(f);N_GUARD::S(C)
- Refutation
- P(c);XR(A)
- Try
- Actual
- S(D);
- Vars
- B(b);XB(E)::QAB1(B)
- S(d);N_GUARD,XB(E)::QAR1(B)
- S(f);N_GUARD,XB(E)::S(C)
- R(e);N_GUARD,P_PINS(D)::QAB(B),XS(d)
- R(e);N_GUARD::QAB(B),XS(d)
- B(b);::QAB1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- S(f);N_GUARD::S(C),XS(f)
- S(f);N_GUARD::S(C)
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).