MESON Chess Problem Database
Problem Display
PID: 137634 (5Q2/4r3/6p1/1bP2qR1/p1k2P2/K3B3/1P2P1N1/1N1R1B2 w - - 0 1)
Harley, Brian
The Field, 1930
(First published on Sat Oct 18 1930)
#2
12 + 6
SOLUTION
- SOUND
- Sets
- 1...Qxb1
- 2.Rd4#
- 1...Qc2
- 2.Rd4#
- 1...Qd3+
- 2.exd3#
- 1...Qh3
- 2.Sd2#
- 2.Rc1#
- 2.Rd4#
- 1...Qe4
- 2.Sd2#
- 1...Qg4
- 2.Sd2#
- 2.Rc1#
- 2.Rd4#
- 1...Qe6
- 2.Sd2#
- 2.Rc1#
- 2.Rd4#
- 1...Qd7
- 2.Rc1#
- 1...Qc8
- 2.Sd2#
- 2.Rc1#
- 2.Rd4#
- 1...Qxf4
- 2.Sd2#
- 2.Rc1#
- 1...Qxc5+
- 2.Rxc5#
- 1...Qd5
- 2.Rc1#
- 1...Qf6
- 2.Sd2#
- 1...Qf7
- 2.Sd2#
- 2.Rc1#
- 2.Rd4#
- 1...Qxf8
- 2.Sd2#
- 2.Rc1#
- 2.Rd4#
- 1...Rxe3+
- 2.Sxe3#
- 1...Re5
- 2.Rd4#
- 1...Re6
- 2.Rd4#
- 1...Ra7
- 2.Rd4#
- 1...Rb7
- 2.Rd4#
- 1...Rc7
- 2.Rd4#
- 1...Rf7
- 2.Rd4#
- 1...Rg7
- 2.Rd4#
- 1...Rh7
- 2.Rd4#
- 1...Re8
- 2.Rd4#
- 1...Qxb1
- Tries
- 1.Bg1?
- threat
- 2.e4#
- 1...Qd3+
- 2.exd3#
- 1...Qh3+
- 2.e3#
- 1...Qxc5+
- 2.Rxc5#
- 1...Re3+
- 2.Sxe3#
- 1...Qxb1
- 2.Rd4#
- 1...Rxe2
- 2.Se3#
- 2.Rd4#
- 1...Qc2
- 2.Rd4#
- 1...Qe4
- 2.Sd2#
- 1...Qg4
- 2.Sd2#
- 2.Rc1#
- 2.Rd4#
- 1...Qd7
- 2.Rc1#
- 1...Qd5
- 2.Rc1#
- 1...Re4
- 2.e3#
- 1...Rd7
- 2.Se3#
- 1...Qxf4!
- threat
- 1.Rc1+?
- 1...Qc2
- 2.Sd2#
- 2.Rxc2#
- 1...Kd5!
- 1...Qc2
- 1.Qxf5?
- threat
- 2.Sd2#
- 2.Rc1#
- 2.Rd4#
- 2.Qc2#
- 2.Qd3#
- 2.Qd5#
- 1...Rxe3+
- 2.Sxe3#
- 1...Ba6
- 2.Qd3#
- 1...Bc6
- 2.Qd3#
- 1...Bd7
- 2.Qd3#
- 1...Be8
- 2.Qd3#
- 1...Re4
- 2.Sd2#
- 2.Rc1#
- 2.Qxe4#
- 2.Qd5#
- 1...Re5
- 2.Qc2#
- 2.Qd3#
- 1...Rd7
- 2.Rc1#
- 2.Qc2#
- 1...gxf5!
- threat
- 1.Bg1?
- Keys
- 1.Bf2!
- threat
- 2.e4#
- 1...Qd3+
- 2.exd3#
- 1...Qh3+
- 2.e3#
- 1...Qxc5+
- 2.Rxc5#
- 1...Re3+
- 2.Sxe3#
- 1...Qxb1
- 2.Rd4#
- 1...Rxe2
- 2.Se3#
- 2.Rd4#
- 1...Qc2
- 2.Rd4#
- 1...Qe4
- 2.Sd2#
- 1...Qg4
- 2.Sd2#
- 2.Rc1#
- 2.Rd4#
- 1...Qd7
- 2.Rc1#
- 1...Qd5
- 2.Rc1#
- 1...Re4
- 2.e3#
- 1...Rd7
- 2.Se3#
- threat
- 1.Bf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- Q(d);XS(A)::R1(B)
- Q(d);::R1(B)
- Q(d);CHECK,OGATE::P(E),XQ(d)
- Q(d);::S(A)
- Q(d);N_GUARD::R(B)
- Q(d);CHECK,OGATE,XP(J)::R1(K),XQ(d)
- R(f);CHECK,XB(H)::S(F),XR(f)
- R(f);::R1(B)
- Tries
- Try
- B(H);
- Threat
- B(C)+P(E)
- Vars
- Q(d);CHECK,OGATE::P(E),XQ(d)
- Q(d);CHECK,N_GUARD::B(C)+P(E)
- Q(d);CHECK,OGATE,XP(J)::R1(K),XQ(d)
- R(f);CHECK,N_GUARD::S(F),XR(f)
- Q(d);XS(A)::R1(B)
- Q(d);::R1(B)
- Q(d);::S(A)
- Q(d);N_GUARD::R(B)
- R(f);S_CUTQ(d)::B(C)+P(E)
- R(f);N_GUARD::S(F)
- Refutation
- Q(d);XP(I)
- Try
- R(B);CHECK
- Refutation
- K(b);P_SPINQ(d),S_FLIGHT
- Try
- Q(L);XQ(d)
- Threat
- DUALS(6)
- Vars
- R(f);CHECK,XB(H)::S(F),XR(f)
- B(c);::QAB1(L)
- Refutation
- P(e);XQ(L)
- Try
- Actual
- B(H);
- Threat
- B(C)+P(E)
- Vars
- Q(d);CHECK,OGATE::P(E),XQ(d)
- Q(d);CHECK,N_GUARD::B(C)+P(E)
- Q(d);CHECK,OGATE,XP(J)::R1(K),XQ(d)
- R(f);CHECK,N_GUARD::S(F),XR(f)
- Q(d);XS(A)::R1(B)
- Q(d);::R1(B)
- Q(d);::S(A)
- Q(d);N_GUARD::R(B)
- R(f);S_CUTQ(d)::B(C)+P(E)
- R(f);N_GUARD::S(F)
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).