MESON Chess Problem Database
Problem Display
PID: 425 (1B3n2/1b2RP2/pkp2N2/b7/1pP1Qp2/1P3K2/2N5/8 w - - 0 1)
Warton, Joseph John
Warton, Thomas Joseph
The Observer, 1947
(First published on Sun Jun 29 1947)
#2
9 + 8
| 15239 | Valois Notebooks | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Kc5
- 2.Qd4#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Se6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5
- 2.Rxb7#
- 2.Qxb7#
- 1...Kc5
- Tries
- 1.Ke2?
- 1...Kc5
- 2.Qd4#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Se6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5
- 2.Rxb7#
- 2.Qxb7#
- 1...f3+!
- 1...Kc5
- 1.Kf2?
- 1...Kc5
- 2.Qd4#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Se6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5
- 2.Rxb7#
- 2.Qxb7#
- 1...f3!
- 1...Kc5
- 1.Kg2?
- 1...Kc5
- 2.Qd4#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Se6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5
- 2.Rxb7#
- 2.Qxb7#
- 1...f3+!
- 1...Kc5
- 1.Sa1?
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Se6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5
- 2.Rxb7#
- 2.Qxb7#
- 1...Kc5!
- 1...Ba8
- 1.Se1?
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Se6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5
- 2.Rxb7#
- 2.Qxb7#
- 1...Kc5!
- 1...Ba8
- 1.Sd4?
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 2.Qxc6#
- 1...Se6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5
- 2.Rxb7#
- 2.Qxb7#
- 1...Kc5!
- 1...Ba8
- 1.Sd5+?
- 1...Kc5
- 2.Qd4#
- 1...cxd5!
- 1...Kc5
- 1.Bc7+?
- 1...Kc5
- 2.Re5#
- 2.Qf5#
- 2.Qd4#
- 2.Qe5#
- 1...Ka7!
- 1...Kc5
- 1.Re6?
- threat
- 2.Qd4#
- 1...Kc5
- 2.Qd4#
- 1...Sxe6
- 2.Sd7#
- 1...Bc8
- 2.Qxc6#
- 1...Sd7
- 2.Sxd7#
- 1...Ba8!
- threat
- 1.Rxb7+?
- 1...Kc5
- 2.Qf5#
- 2.Qd4#
- 2.Qe5#
- 2.Qe7#
- 1...Kxb7!
- 1...Kc5
- 1.Rc7?
- 1...Kc5
- 2.Qd4#
- 1...Se6
- 2.Sd7#
- 1...Bc8
- 2.Qxc6#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5
- 2.Rxb7#
- 2.Qxb7#
- 1...Ba8!
- 1...Kc5
- 1.Qd3?
- 1...Kc5
- 2.Qd4#
- 1...Se6
- 2.Sd7#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5+!
- 1...Kc5
- 1.Qd5?
- 1...Se6
- 2.Sd7#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5
- 2.Rxb7#
- 2.Qxb7#
- 1...cxd5!
- 1...Se6
- 1.Qf5?
- 1...Se6
- 2.Sd7#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5+!
- 1...Se6
- 1.Qe1?
- 1...Kc5
- 2.Qf2#
- 2.Qg1#
- 1...Se6
- 2.Sd7#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5+!
- 1...Kc5
- 1.Qe2?
- 1...Kc5
- 2.Qf2#
- 1...Se6
- 2.Sd7#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5+!
- 1...Kc5
- 1.Qxf4?
- 1...Kc5
- 2.Qe3#
- 2.Qd4#
- 1...Se6
- 2.Sd7#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5+!
- 1...Kc5
- 1.Qe5?
- 1...Se6
- 2.Sd7#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5+!
- 1...Se6
- 1.Qe6?
- 1...Sxe6
- 2.Sd7#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Kc5!
- 1...Sxe6
- 1.c5+?
- 1...Kb5
- 2.Qc4#
- 1...Kxc5!
- 1...Kb5
- 1.Ke2?
- Keys
- 1.Qg6!
- 1...c5+
- 2.Sd5#
- 1...Kc5
- 2.Qg1#
- 1...Sxg6
- 2.Sd7#
- 1...Se6
- 2.Sd7#
- 1...Ba8
- 2.Ba7#
- 1...Bc8
- 2.Ba7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...c5+
- 1.Qg6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(e);S_FLIGHT::QAB1(E)
- B(g);::B(I)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- K(e);S_FLIGHT::QAB1(E)
- B(g);::B(I)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(b);CHECK
- Try
- K(C);P-FLIGHT
- Vars
- K(e);S_FLIGHT::QAB1(E)
- B(g);::B(I)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(b);
- Try
- K(C);S_FLIGHT
- Vars
- K(e);S_FLIGHT::QAB1(E)
- B(g);::B(I)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(b);CHECK
- Try
- S(A);
- Vars
- B(g);::B(I)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- K(e);S_FLIGHT
- Try
- S(A);
- Vars
- B(g);::B(I)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- K(e);S_FLIGHT
- Try
- S(A);
- Vars
- B(g);::B(I)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- K(e);S_FLIGHT
- Try
- S(F);CHECK
- Vars
- K(e);S_FLIGHT::QAB1(E)
- Refutation
- P(f);XS(F)
- Try
- B(I);CHECK
- Refutation
- K(e);S_FLIGHT
- Try
- R(G);P_PINP(f)
- Threat
- QAB(E)
- Vars
- K(e);N_SPINP(f),S_FLIGHT::QAB1(E)
- S(h);N_GUARD,N_SPINP(f),XR(G)::S(F)
- B(g);N_GUARD::QAR1(E),XP(f)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- B(g);
- Try
- R(G);CHECK,XB(g)
- Refutation
- K(e);P-FLIGHT,P_SPINP(f),XR(G)
- Try
- R(G);
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(E)
- S(h);N_GUARD::S(F)
- B(g);N_GUARD::QAR1(E),XP(f)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- B(g);
- Try
- Q(E);
- Vars
- K(e);S_FLIGHT::QAB1(E)
- S(h);N_GUARD::S(F)
- B(g);::B(I)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(f);CHECK
- Try
- Q(E);
- Vars
- S(h);N_GUARD::S(F)
- B(g);::B(I)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(f);XQ(E)
- Try
- Q(E);
- Vars
- S(h);N_GUARD::S(F)
- B(g);::B(I)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(f);CHECK
- Try
- Q(E);
- Vars
- S(h);N_GUARD::S(F)
- B(g);::B(I)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(f);CHECK
- Try
- Q(E);
- Vars
- K(e);S_FLIGHT::QAB(E)
- S(h);N_GUARD::S(F)
- B(g);::B(I)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(f);CHECK
- Try
- Q(E);XP(b)
- Vars
- S(h);N_GUARD::S(F)
- B(g);::B(I)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(f);CHECK
- Try
- Q(E);
- Vars
- S(h);N_GUARD::S(F)
- B(g);::B(I)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- P(f);CHECK
- Try
- Q(E);P_PINP(f)
- Vars
- S(h);N_GUARD,N_SPINP(f),XQ(E)::S(F)
- B(g);::B(I)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- K(e);N_SPINP(f),S_FLIGHT
- Try
- P(D);CHECK
- Vars
- K(e);P-FLIGHT::QAB1(E)
- Refutation
- K(e);S_FLIGHT,XP(D)
- Try
- Actual
- Q(E);
- Vars
- P(f);CHECK,SBLOCK::QAR(E)+S(F),DCHECK
- K(e);S_FLIGHT::QAB(E)
- S(h);N_GUARD,XQ(E)::S(F)
- S(h);N_GUARD::S(F)
- B(g);::B(I)
- S(h);N_GUARD::S(F),XS(h)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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