MESON Chess Problem Database
Problem Display
PID: 269538 (b2B4/r1pN1Rpq/3kP3/3B3r/4pP1b/1p4N1/3Q4/2R3K1 w - - 0 1)
Howard, Kenneth Samuel
British Chess Magazine, 1934
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qg8
- 2.Sxe4#
- 1...Qh6
- 2.Sxe4#
- 1...Qh8
- 2.Sxe4#
- 1...Re5
- 2.fxe5#
- 1...Rf5
- 2.Sxe4#
- 1...Rg5
- 2.Be7#
- 1...Ra1
- 2.Bxc7#
- 1...Ra2
- 2.Bxc7#
- 1...Ra3
- 2.Bxc7#
- 1...Ra4
- 2.Bxc7#
- 1...Ra5
- 2.Bxc7#
- 1...Ra6
- 2.Bxc7#
- 1...Rb7
- 2.Rc6#
- 1...Bxg3
- 2.Be7#
- 1...Be7
- 2.Bxe7#
- 1...Bc6
- 2.Rxc6#
- 1...Bb7
- 2.Bxc7#
- 1...g5
- 2.Be7#
- 1...g6
- 2.Sxe4#
- 1...Qg8
- Tries
- 1.Bc6+?
- 1...Rd5
- 2.Qxd5#
- 1...Kxe6!
- 1...Rd5
- 1.Bb7+?
- 1...Rd5
- 2.Rc6#
- 2.Qxd5#
- 1...Kxe6!
- 1...Rd5
- 1.Bxa8+?
- 1...Rd5
- 2.Rc6#
- 2.Qxd5#
- 1...Kxe6!
- 1...Rd5
- 1.Qb4+?
- 1...c5
- 2.Qxc5#
- 1...Kxd5!
- 1...c5
- 1.f5?
- threat
- 2.Sxe4#
- 2.Bc6#
- 2.Bb7#
- 2.Bxa8#
- 1...Rxf5
- 2.Sxe4#
- 1...Bxg3
- 2.Bc6#
- 2.Bb7#
- 2.Bxa8#
- 2.Be7#
- 1...Bxd5
- 2.Sxe4#
- 2.Qf4#
- 1...Qg6
- 2.Bc6#
- 2.Bb7#
- 2.Bxa8#
- 1...Qh6
- 2.Sxe4#
- 1...Rg5
- 2.Bc6#
- 2.Bb7#
- 2.Bxa8#
- 2.Be7#
- 1...Ra2
- 2.Sxe4#
- 2.Bxc7#
- 1...Ra4
- 2.Bxc7#
- 1...Ra5
- 2.Sxe4#
- 2.Bxc7#
- 1...Rb7
- 2.Sxe4#
- 2.Bxb3#
- 2.Bxe4#
- 2.Bc6#
- 2.Bxb7#
- 2.Rc6#
- 1...Bg5
- 2.Sxe4#
- 1...Bf6
- 2.Sxe4#
- 1...Bc6
- 2.Sxe4#
- 2.Bxc6#
- 2.Rxc6#
- 1...Bb7
- 2.Sxe4#
- 2.Bc6#
- 2.Bxb7#
- 2.Bxc7#
- 1...e3
- 2.Se4#
- 1...c5
- 2.Sxe4#
- 2.Bb7#
- 2.Bxa8#
- 1...c6
- 2.Sxe4#
- 2.Bxb3#
- 2.Bc4#
- 2.Bxe4#
- 2.Bxc6#
- 1...Qxf5!
- threat
- 1.Bc6+?
- Keys
- 1.Se5!
- threat
- 2.Rd7#
- 1...Bxd5
- 2.Rc6#
- 1...Be7
- 2.Bxe7#
- 1...Bc6
- 2.Rxc6#
- 1...c5
- 2.Sc4#
- 1...c6
- 2.Bxb3#
- 1...g5
- 2.Be7#
- 1...g6
- 2.Sxe4#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 15
- Sets
- Q(i);N_GUARD::S(D),XP(b)
- R(d);OGATE::P(E),XR(d)
- R(d);S_CUTQ(i)::S(D),XP(b)
- R(d);P_PINS(D),S_CUTB(c)::B(J)
- R(f);N_GUARD,P_PINR(A)::B(J),XP(g)
- R(f);N_GUARD::B(J),XP(g)
- R(f);S_CUTB(j)::R1(A)
- B(c);N_GUARD,XS(D)::B(J)
- B(c);N_GUARD::B(J),XB(c)
- B(j);N_GUARD::R1(A),XB(j)
- B(j);S_CUTR(f)::B(J),XP(g)
- P(h);S_CUTB(c)::B(J)
- P(h);S_CUTQ(i)::S(D),XP(b)
- Tries
- Try
- B(F);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR1(C),XR(d)
- Refutation
- K(e);P-FLIGHT,XP(G)
- Try
- B(F);CHECK
- Refutation
- K(e);P-FLIGHT,XP(G)
- Try
- B(F);CHECK,XB(j)
- Refutation
- K(e);P-FLIGHT,XP(G)
- Try
- Q(C);CHECK
- Vars
- P(g);P_SPINP(g)::QAB1(C),XP(g)
- Refutation
- K(e);P-FLIGHT,XB(F)
- Try
- P(E);
- Threat
- DUALS(4)
- Vars
- R(d);XP(E)::S(D),XP(b)
- Q(i);::S(D),XP(b)
- R(f);N_GUARD::B(J),XP(g)
- B(c);::S(D),XP(b)
- P(b);::S(D)
- Refutation
- Q(i);XP(E)
- Try
- Actual
- S(H);
- Threat
- R1(I)
- Vars
- B(j);N_GUARD,P_SPINB(j),XB(F)::R1(A)
- B(c);N_GUARD::B(J),XB(c)
- B(j);N_GUARD::R1(A),XB(j)
- P(g);SBLOCK::S(H)
- P(g);S_CUTB(j)::QAR(C)+B(F),XP(a)
- P(h);S_CUTB(c)::B(J)
- P(h);S_CUTQ(i)::S(D),XP(b)
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).