MESON Chess Problem Database
Problem Display
PID: 3104 (8/1N1N2p1/4p2b/1P1kp1pR/n1pn4/5P2/3Q4/2KR4 w - - 0 1)
Harley, Brian
Morning Post, 1918
(First published on Mon Nov 4 1918)
#2
8 + 9
| 2681 | All Change Here! | 1919 |
| 15290 | Harley Scrapbook | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Sb6#
- 1...Sc3
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...c3
- 2.Qa2#
- 1...e4
- 2.Qxd4#
- 1...g4
- 2.Rxe5#
- 1...g6
- 2.Sf6#
- 1...Sb2
- Tries
- 1.Kb1?
- 1...c3
- 2.Qa2#
- 1...Sb2
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...e4
- 2.Qxd4#
- 1...g4
- 2.Rxe5#
- 2.Qxd4#
- 1...g6
- 2.Sf6#
- 1...Sc3+!
- 1...c3
- 1.Re1?
- threat
- 2.Rxe5#
- 1...e4
- 2.fxe4#
- 1...c3!
- threat
- 1.Rhh1?
- 1...c3
- 2.Qa2#
- 1...Sb2
- 2.Sb6#
- 1...Sc3
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...e4
- 2.Qxd4#
- 1...g6
- 2.Sf6#
- 1...g4!
- 1...c3
- 1.Rh2?
- 1...c3
- 2.Qa2#
- 1...Sb2
- 2.Sb6#
- 1...Sc3
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...e4
- 2.Qxd4#
- 1...g6
- 2.Sf6#
- 1...g4!
- 1...c3
- 1.Rh3?
- 1...c3
- 2.Qa2#
- 1...Sb2
- 2.Sb6#
- 1...Sc3
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...e4
- 2.Qxd4#
- 1...g6
- 2.Sf6#
- 1...g4!
- 1...c3
- 1.Rxg5?
- threat
- 2.Rxe5#
- 2.Qxd4#
- 1...c3
- 2.Qa2#
- 2.Qxd4#
- 1...Bxg5!
- threat
- 1.Rxh6?
- 1...gxh6
- 2.Sf6#
- 1...c3
- 2.Qa2#
- 1...Sb2
- 2.Sb6#
- 1...Sc3
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...e4
- 2.Qxd4#
- 1...g6
- 2.Sf6#
- 1...g4!
- 1...gxh6
- 1.Qc3?
- 1...Sxc3
- 2.Sb6#
- 1...Sb2
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...e4
- 2.Rxd4#
- 2.Qxd4#
- 1...g6
- 2.Sf6#
- 1...g4+!
- 1...Sxc3
- 1.Qe3?
- threat
- 2.Qe4#
- 2.Qxe5#
- 1...g4
- 2.Rxd4#
- 2.Rxe5#
- 1...Sc3
- 2.Sb6#
- 2.Qxe5#
- 1...Sc5
- 2.Sb6#
- 2.Qxe5#
- 1...e4
- 2.Rxd4#
- 2.Qxd4#
- 2.Qxe4#
- 2.fxe4#
- 1...c3!
- threat
- 1.Qb4?
- threat
- 2.Qd6#
- 1...Sc5
- 2.Sb6#
- 2.Qxc5#
- 1...c3
- 2.Qb3#
- 1...g4+!
- threat
- 1.Qb2?
- 1...Sxb2
- 2.Sb6#
- 1...c3
- 2.Qa2#
- 2.Qb3#
- 1...Sc3
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...e4
- 2.Rxd4#
- 2.Qxd4#
- 1...g6
- 2.Sf6#
- 1...g4+!
- 1...Sxb2
- 1.Qc2?
- threat
- 2.Qe4#
- 1...c3
- 2.Qb3#
- 2.Qa2#
- 1...Sc3
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...e4
- 2.Qxe4#
- 2.fxe4#
- 1...g4+!
- threat
- 1.Qe2?
- threat
- 2.Qe4#
- 2.Qxe5#
- 1...Sc3
- 2.Sb6#
- 2.Qxe5#
- 1...Sc5
- 2.Sb6#
- 2.Qxe5#
- 1...c3
- 2.Qa2#
- 1...e4
- 2.Qxe4#
- 2.fxe4#
- 1...g4+!
- threat
- 1.Qf2?
- 1...c3
- 2.Qa2#
- 1...Sb2
- 2.Sb6#
- 1...Sc3
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...e4
- 2.Rxd4#
- 2.Qxd4#
- 1...g6
- 2.Sf6#
- 1...g4+!
- 1...c3
- 1.Qh2?
- threat
- 2.Qxe5#
- 1...c3
- 2.Qa2#
- 1...e4
- 2.Qe5#
- 2.Qd6#
- 1...g4+!
- threat
- 1.Kb1?
- Keys
- 1.Qg2!
- 1...g4+
- 2.f4#
- 1...c3
- 2.Qa2#
- 1...Sb2
- 2.Sb6#
- 1...Sc3
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...e4
- 2.fxe4#
- 1...g6
- 2.Sf6#
- 1...g4+
- 1.Qg2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(b);OGATEB::QAB(C)
- P(e);N_GUARD,P_SPINP(f)::QAR1(C),XS(c)
- P(f);OGATE,P_PINQ(C),P_SPINP(e)::R1(F),XP(e)
- P(i);N_GUARD::S(H)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- P(b);OGATEB::QAB(C)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(e);N_GUARD,P_SPINP(f)::QAR1(C),XS(c)
- P(i);N_GUARD::S(H)
- Refutation
- S(a);CHECK
- Try
- R(B);
- Threat
- R1(B),XP(e)
- Vars
- P(e);OGATE,P_SPINP(f)::P(D),XP(e)
- Refutation
- P(b);
- Try
- R(F);
- Vars
- P(b);OGATEB::QAB(C)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(e);N_GUARD::QAR1(C),XS(c)
- P(i);N_GUARD::S(H)
- Refutation
- P(f);P_PINQ(C)
- Try
- R(F);
- Vars
- P(b);OGATEB::QAB(C)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(e);N_GUARD::QAR1(C),XS(c)
- P(i);N_GUARD::S(H)
- Refutation
- P(f);P_PINQ(C)
- Try
- R(F);
- Vars
- P(b);OGATEB::QAB(C)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(e);N_GUARD::QAR1(C),XS(c)
- P(i);N_GUARD::S(H)
- Refutation
- P(f);P_PINQ(C)
- Try
- R(F);P_PINP(e),XP(f)
- Threat
- DUALS(2)
- Refutation
- B(h);N_SPINP(e),P_PINQ(C),XR(F)
- Try
- R(F);XB(h)
- Vars
- P(i);N_GUARD,XR(F)::S(H)
- P(b);OGATEB::QAB(C)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(e);N_GUARD::QAR1(C),XS(c)
- P(i);N_GUARD::S(H)
- Refutation
- P(f);
- Try
- Q(C);
- Vars
- S(a);N_GUARD,XQ(C)::S(H)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(i);N_GUARD::S(H)
- Refutation
- P(f);CHECK,P_SPINP(e)
- Try
- Q(C);
- Threat
- DUALS(2)
- Refutation
- P(b);
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- P(b);OGATEB::QAB(C)
- Refutation
- P(f);CHECK,P_SPINP(e)
- Try
- Q(C);
- Vars
- S(a);N_GUARD,XQ(C)::S(H)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(i);N_GUARD::S(H)
- Refutation
- P(f);CHECK,P_SPINP(e)
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- S(a);N_GUARD::S(H)
- Refutation
- P(f);CHECK,P_SPINP(e)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- P(b);OGATEB::QAB(C)
- Refutation
- P(f);CHECK,P_SPINP(e)
- Try
- Q(C);
- Vars
- P(b);OGATEB::QAB(C)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(i);N_GUARD::S(H)
- Refutation
- P(f);CHECK,P_SPINP(e)
- Try
- Q(C);
- Threat
- QAR1(C),XP(e)
- Vars
- P(b);OGATEB::QAB(C)
- Refutation
- P(f);CHECK,P_SPINP(e)
- Try
- Actual
- Q(C);
- Vars
- P(f);CHECK,P_SPINP(e)::QAB(C)+P(D)
- P(b);OGATEB::QAB(C)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(e);OGATE,P_SPINP(f)::P(D),XP(e)
- P(i);N_GUARD::S(H)
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).