MESON Chess Problem Database
Problem Display
PID: 275456 (1Nn2B1K/1p3p2/q1pPk3/b2p2Q1/3P4/6Nb/4r2R/5r2 w - - 0 1)
Howard, Kenneth Samuel
British Chess Magazine, 1935
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Qb6
- 2.Rxe2#
- 1...Qa7
- 2.Rxe2#
- 1...Qa8
- 2.Rxe2#
- 1...Ra2
- 2.Qe5#
- 1...Rb2
- 2.Qe5#
- 1...Rc2
- 2.Qe5#
- 1...Rd2
- 2.Qe5#
- 1...Rf2
- 2.Qe5#
- 1...Rg2
- 2.Qe5#
- 1...Rxh2
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Sb6
- 2.Qe7#
- 1...Sxd6
- 2.Qe7#
- 1...Sa7
- 2.Qe7#
- 1...Se7
- 2.Qxe7#
- 1...b5
- 2.Rxe2#
- 1...f5
- 2.Qg6#
- 1...f6
- 2.Qg8#
- 1...Qb6
- Tries
- 1.Qe3+?
- 1...Kf6
- 2.Qh6#
- 1...Rxe3!
- 1...Kf6
- 1.Qe3+?
- Keys
- 1.d7!
- threat
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rxh2
- 2.Qe5#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Se7
- 2.Qxe7#
- 1...f5
- 2.Qg6#
- 1...f6
- 2.Qg8#
- 1...Qd3
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qc4
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qb5
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qb6
- 2.Rxe2#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa7
- 2.Rxe2#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Qa8
- 2.Rxe2#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Ra1
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rb1
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rc1
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rd1
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rfe1
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rg1
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rh1
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rff2
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rf3
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rf4
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rf5
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rf6
- 2.dxc8Q#
- 2.dxc8B#
- 1...Ree1
- 2.dxc8Q#
- 2.dxc8B#
- 1...Ra2
- 2.Qe5#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rb2
- 2.Qe5#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rc2
- 2.Qe5#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rd2
- 2.Qe5#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Ref2
- 2.Qe5#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Rg2
- 2.Qe5#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Re3
- 2.dxc8Q#
- 2.dxc8B#
- 1...Re4
- 2.dxc8Q#
- 2.dxc8B#
- 1...Re5
- 2.Qxe5#
- 2.dxc8Q#
- 2.dxc8B#
- 1...Bg2
- 2.dxc8Q#
- 2.dxc8B#
- 1...Bg4
- 2.dxc8Q#
- 2.dxc8B#
- 1...Bf5
- 2.dxc8Q#
- 2.dxc8B#
- 1...Be1
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bd2
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bc3
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bb4
- 2.dxc8Q#
- 2.dxc8B#
- 2.d8S#
- 1...Bb6
- 2.dxc8Q#
- 2.dxc8B#
- 1...Bc7
- 2.dxc8Q#
- 2.dxc8B#
- 1...Bd8
- 2.dxc8Q#
- 2.dxc8B#
- 1...Sb6
- 2.Qe7#
- 2.d8S#
- 1...Sd6
- 2.Qe7#
- 1...Sa7
- 2.Qe7#
- 1...c5
- 2.dxc8Q#
- 2.dxc8B#
- 1...b5
- 2.Rxe2#
- 1...b6
- 2.d8S#
- threat
- 1.d7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- Q(f);N_GUARD::R(A),XR(b)
- R(b);N_GUARD::QAR1(D)
- R(b);N_GUARD,XR(A)::QAR1(D)
- R(b);N_GUARD::QAR1(D),XR(b)
- S(k);N_GUARD::QAR1(D)
- S(k);N_GUARD,XP(E)::QAR1(D)
- S(k);N_GUARD::QAR1(D),XS(k)
- P(i);S_CUTQ(f)::R(A),XR(b)
- P(j);N_GUARD,S_CUTR(a)::QAR2(D)
- P(j);OGATEB,SBLOCK::QAB(D)
- Tries
- Try
- Q(D);CHECK
- Vars
- K(h);P-FLIGHT,S_CUTP(j),S_CUTR(a)::QAR2(D)
- Refutation
- R(b);XQ(D)
- Try
- Actual
- P(E);
- Threat
- PXS(k)=Q
- Vars
- S(k);N_GUARD::QAR1(D),XS(k)
- P(j);N_GUARD,S_CUTR(a)::QAR2(D)
- P(j);OGATEB,SBLOCK::QAB(D)
- Q(f);::PXS(k)=Q
- R(a);::PXS(k)=Q
- R(b);::PXS(k)=Q
- B(c);::PXS(k)=Q
- B(d);::PXS(k)=Q
- S(k);N_GUARD::QAR1(D)
- P(g);::PXS(k)=Q
- P(i);S_CUTQ(f)::R(A),XR(b)
- P(i);S_CUTB(d)::P=S
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).