MESON Chess Problem Database
Problem Display
PID: 268548 (2nN1Q1K/qp3Pp1/3p1k1b/r2n3R/8/2N4b/6p1/1B4B1 w - - 0 1)
Howard, Kenneth Samuel
British Chess Magazine, 1934
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Bxd4#
- 1...Qb8
- 2.Bd4#
- 1...Qa6
- 2.Bd4#
- 1...Qa8
- 2.Bd4#
- 1...Ra1
- 2.Sxd5#
- 1...Ra2
- 2.Sxd5#
- 1...Ra3
- 2.Sxd5#
- 1...Ra4
- 2.Sxd5#
- 1...Rc5
- 2.Bd4#
- 1...Ra6
- 2.Sxd5#
- 1...Sb6
- 2.Bd4#
- 1...b5
- 2.Sxd5#
- 1...b6
- 2.Bd4#
- 1...g6
- 2.Se4#
- 1...Qd4
- Tries
- 1.Qxd6+?
- 1...Be6
- 2.Qxe6#
- 2.f8Q#
- 2.f8R#
- 1...Sxd6!
- 1...Be6
- 1.Qe7+?
- 1...Sdxe7
- 2.f8Q#
- 2.f8R#
- 1...Scxe7
- 2.f8Q#
- 2.f8R#
- 1...Kxe7!
- 1...Sdxe7
- 1.Qxg7+?
- 1...Ke7
- 2.f8Q#
- 1...Bxg7+!
- 1...Ke7
- 1.Qxd6+?
- Keys
- 1.Qe8!
- threat
- 2.f8Q#
- 2.f8R#
- 1...Qxg1
- 2.f8Q#
- 2.f8R#
- 1...Sxc3
- 2.f8Q#
- 2.f8R#
- 1...Bf5
- 2.f8Q#
- 2.f8R#
- 1...Qf2
- 2.f8Q#
- 2.f8R#
- 1...Qe3
- 2.f8Q#
- 2.f8R#
- 1...Qd4
- 2.Bxd4#
- 2.f8Q#
- 2.f8R#
- 1...Qc5
- 2.f8Q#
- 2.f8R#
- 1...Qb6
- 2.f8Q#
- 2.f8R#
- 1...Qb8
- 2.Bd4#
- 2.f8Q#
- 2.f8R#
- 1...Qa6
- 2.Bd4#
- 2.f8Q#
- 2.f8R#
- 1...Qa8
- 2.Bd4#
- 2.f8Q#
- 2.f8R#
- 1...Ra1
- 2.Sxd5#
- 2.f8Q#
- 2.f8R#
- 1...Ra2
- 2.Sxd5#
- 2.f8Q#
- 2.f8R#
- 1...Ra3
- 2.Sxd5#
- 2.f8Q#
- 2.f8R#
- 1...Ra4
- 2.Sxd5#
- 2.f8Q#
- 2.f8R#
- 1...Rb5
- 2.f8Q#
- 2.f8R#
- 1...Rc5
- 2.Bd4#
- 2.f8Q#
- 2.f8R#
- 1...Ra6
- 2.Sxd5#
- 2.f8Q#
- 2.f8R#
- 1...Bg4
- 2.f8Q#
- 2.f8R#
- 1...Be6
- 2.Qxe6#
- 1...Bd7
- 2.f8Q#
- 2.f8R#
- 1...Bc1
- 2.f8Q#
- 2.f8R#
- 1...Bd2
- 2.f8Q#
- 2.f8R#
- 1...Be3
- 2.f8Q#
- 2.f8R#
- 1...Bf4
- 2.f8Q#
- 2.f8R#
- 1...Bg5
- 2.f8Q#
- 2.f8R#
- 1...Se3
- 2.f8Q#
- 2.f8R#
- 1...Sb4
- 2.f8Q#
- 2.f8R#
- 1...Sf4
- 2.f8Q#
- 2.f8R#
- 1...Sdb6
- 2.f8Q#
- 2.f8R#
- 1...Sc7
- 2.f8Q#
- 2.f8R#
- 1...Sde7
- 2.f8Q#
- 2.f8R#
- 1...Scb6
- 2.Bd4#
- 2.f8Q#
- 2.f8R#
- 1...Sce7
- 2.f8Q#
- 2.f8R#
- 1...b5
- 2.Sxd5#
- 1...b6
- 2.Bd4#
- 1...g5
- 2.Rxh6#
- 1...g6
- 2.Se4#
- threat
- 1.Qe8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(h);N_GUARD::B(B),XQ(h)
- Q(h);N_GUARD::B(B)
- R(c);N_GUARD::S(C),XS(d)
- R(c);S_CUTQ(h)::B(B)
- S(k);S_CUTQ(h)::B(B)
- P(i);S_CUTR(c)::S(C),XS(d)
- P(i);S_CUTQ(h)::B(B)
- P(j);SBLOCK::S(C)
- Tries
- Try
- Q(G);CHECK,XP(e)
- Refutation
- S(k);XQ(G)
- Try
- Q(G);CHECK
- Vars
- S(d);XQ(G)::P=Q
- S(k);XQ(G)::P=Q
- Refutation
- K(f);S_FLIGHT,XQ(G)
- Try
- Q(G);CHECK,XP(j)
- Vars
- K(f);S_FLIGHT::P=Q
- Refutation
- B(g);CHECK,XQ(G)
- Try
- Actual
- Q(G);
- Threat
- P=Q
- Vars
- Q(h);XB(B)::P=Q
- S(d);XS(C)::P=Q
- B(b);::P=Q
- Q(h);::P=Q
- R(c);::P=Q
- B(b);N_GUARD::QAR1(G),XB(b)
- B(g);::P=Q
- S(d);::P=Q
- S(k);::P=Q
- P(i);S_CUTR(c)::S(C),XS(d)
- P(i);S_CUTQ(h)::B(B)
- P(j);N_GUARD,SBLOCK::R(D),XB(g)
- P(j);SBLOCK::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).