MESON Chess Problem Database
Problem Display
PID: 154393 (3R2n1/P2N3K/2p5/Q3Bpp1/n3kPp1/3bpRPp/p1r4N/q6B w - - 0 1)
Atkinson, HL
Hampstead and Highgate Express, 1913
(First published on Sat Nov 29 1913)
#2
11 + 13
| 14867 | BCPS Library | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Rf2#
- 1...Qc3
- 2.Rf2#
- 1...Qd4
- 2.Rf2#
- 1...Qxe5
- 2.Qxe5#
- 1...Rc1
- 2.Rf1#
- 1...Rc3
- 2.Rf1#
- 1...Rc4
- 2.Rf1#
- 1...Rc5
- 2.Rf1#
- 1...Sc3
- 2.Sc5#
- 1...Sf6+
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...gxf3
- 2.Bxf3#
- 1...gxf4
- 2.Rxf4#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Qb2
- Tries
- 1.Kxg8?
- threat
- 2.Sf6#
- 1...Qxe5
- 2.Qxe5#
- 1...Bc4+!
- threat
- 1.Sxg4?
- threat
- 2.Rxe3#
- 1...Sf6+
- 2.Sgxf6#
- 2.Sdxf6#
- 1...Qxe5
- 2.Qxe5#
- 1...e2
- 2.Sf2#
- 2.Rf1#
- 2.Re3#
- 1...fxg4!
- threat
- 1.Sc5+?
- 1...Rxc5
- 2.Rf1#
- 1...Sxc5!
- 1...Rxc5
- 1.Qb4+?
- 1...Kd5
- 2.Sc5#
- 2.Sf8#
- 1...Qd4
- 2.Rf2#
- 2.Qxd4#
- 1...Rc4
- 2.Rf1#
- 1...Bc4!
- 1...Kd5
- 1.Qxa4+?
- 1...Qd4
- 2.Rf2#
- 2.Qxd4#
- 1...Rc4
- 2.Sc5#
- 2.Rf1#
- 1...Bc4
- 2.Sc5#
- 1...Kd5!
- 1...Qd4
- 1.Qc5?
- threat
- 2.Rxe3#
- 1...Sf6+
- 2.Sxf6#
- 1...Rxc5
- 2.Rf1#
- 1...gxf3
- 2.Bxf3#
- 1...Qd4
- 2.Rf2#
- 2.Qxd4#
- 1...e2
- 2.Rf1#
- 2.Re3#
- 1...Sxc5!
- threat
- 1.Kxg8?
- Keys
- 1.Qc3!
- 1...Sf6+
- 2.Sxf6#
- 1...Kd5
- 2.Sc5#
- 1...Qxc3
- 2.Rf2#
- 1...Qxh1
- 2.Qd4#
- 1...Rxh2
- 2.Qxc6#
- 1...Rxc3
- 2.Rf1#
- 1...Sxc3
- 2.Sc5#
- 1...gxf3
- 2.Bxf3#
- 1...gxf4
- 2.Rxf4#
- 1...Qb2
- 2.Rf2#
- 1...Qb1
- 2.Qd4#
- 1...Qc1
- 2.Qd4#
- 1...Qd1
- 2.Qd4#
- 1...Qe1
- 2.Qd4#
- 1...Qf1
- 2.Qd4#
- 1...Qg1
- 2.Qd4#
- 1...Rc1
- 2.Rf1#
- 1...Rb2
- 2.Qd4#
- 2.Qxc6#
- 1...Rd2
- 2.Qxc6#
- 1...Re2
- 2.Qxc6#
- 1...Rf2
- 2.Qxc6#
- 1...Rg2
- 2.Qxc6#
- 1...Bf1
- 2.Rxe3#
- 1...Be2
- 2.Rxe3#
- 1...Bc4
- 2.Rxe3#
- 1...Bb5
- 2.Rxe3#
- 1...Ba6
- 2.Rxe3#
- 1...Sb2
- 2.Sc5#
- 2.Qd4#
- 1...Sc5
- 2.Sxc5#
- 1...Sb6
- 2.Sc5#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...e2
- 2.Qxd3#
- 1...c5
- 2.a8Q#
- 2.a8B#
- 1...Sf6+
- 1.Qc3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 21
- REMOVED MATES = 4
- Sets
- Q(a);N_GUARD::B(A)+R(C)
- Q(a);OGATE,XB(G)::QAR1(F),XQ(a)
- R(c);N_GUARD::B(A)+R(C)
- S(g);N_GUARD,S_CUTR(c)::S(I)
- S(m);CHECK,N_GUARD::S(I),XS(m)
- S(m);N_GUARD::S(I)
- P(i);OGATE,P_SPINP(i),XR(C)::B(A),XP(i)
- P(k);OGATE,XP(E)::B(A)+R(C),DCHECK,XP(k)
- P(l);::P=Q
- Tries
- Try
- K(J);S_FLIGHT,XS(m)
- Threat
- S(I)
- Vars
- Q(a);OGATE,XB(G)::QAR1(F),XQ(a)
- Refutation
- B(d);CHECK
- Try
- S(B);XP(i)
- Threat
- B(A)+R(C),DCHECK,XP(e)
- Vars
- Q(a);OGATE,XB(G)::QAR1(F),XQ(a)
- Refutation
- P(j);XS(B)
- Try
- S(I);CHECK
- Vars
- R(c);XS(I)::B(A)+R(C)
- Refutation
- S(g);XS(I)
- Try
- Q(F);CHECK
- Vars
- R(c);P_SPINR(c)::B(A)+R(C)
- Refutation
- B(d);P_SPINB(d)
- Try
- Q(F);CHECK,XS(g)
- Vars
- B(d);P_SPINB(d)::S(I)
- Refutation
- K(h);S_FLIGHT
- Try
- Q(F);
- Threat
- B(A)+R(C),DCHECK,XP(e)
- Vars
- S(m);CHECK,N_GUARD::S(I),XS(m)
- R(c);N_GUARD,XQ(F)::B(A)+R(C)
- P(i);OGATE,P_SPINP(i),XR(C)::B(A),XP(i)
- Refutation
- S(g);XQ(F)
- Try
- Actual
- Q(F);
- Vars
- S(m);CHECK,N_GUARD::S(I),XS(m)
- K(h);S_FLIGHT::R(K)+S(I)
- Q(a);N_GUARD,XQ(F)::B(A)+R(C)
- Q(a);N_GUARD,XB(A)::QAR1(F)
- R(c);N_GUARD,XS(B)::QAB(F),XP(l)
- R(c);N_GUARD,XQ(F)::B(A)+R(C)
- S(g);N_GUARD,XQ(F)::S(I)
- P(i);OGATE,P_SPINP(i),XR(C)::B(A),XP(i)
- P(k);OGATE,XP(E)::B(A)+R(C),DCHECK,XP(k)
- Q(a);N_GUARD::B(A)+R(C)
- Q(a);N_GUARD::QAR1(F)
- R(c);N_GUARD::B(A)+R(C)
- R(c);N_GUARD::QAB(F),XP(l)
- B(d);::B(A)+R(C),DCHECK,XP(e)
- S(g);N_GUARD::S(I),XS(g)
- S(g);N_GUARD::S(I)
- S(m);N_GUARD::S(I)
- P(e);::QAB1(F),XB(d)
- P(l);::P=Q
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).