MESON Chess Problem Database
Problem Display
PID: 422 (8/4p3/4R1n1/2k1P1Q1/RbPqP1K1/4Bp2/5N2/5B2 w - - 0 1)
Warton, Joseph John
Warton, Thomas Joseph
The Observer, 1946
(First published on Sun Jun 2 1946)
#2
10 + 6
| 5606 | The Wangling Wizards | 2005 |
| 15239 | Valois Notebooks | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qxe3
- 2.Qxe3#
- 1...Be1
- 2.Sd3#
- 1...Bd2
- 2.Sd3#
- 1...Ba3
- 2.Sd3#
- 1...Bc3
- 2.Sd3#
- 1...Ba5
- 2.Sd3#
- 1...Sf4
- 2.Qxe7#
- 1...Sh4
- 2.Qxe7#
- 1...Sxe5+
- 2.Qxe5#
- 1...Sf8
- 2.Qxe7#
- 1...Sh8
- 2.Qxe7#
- 1...Qxe3
- Tries
- 1.Kxf3?
- 1...Qxe3+
- 2.Qxe3#
- 1...Sxe5+
- 2.Qxe5#
- 1...Be1
- 2.Sd3#
- 1...Bd2
- 2.Sd3#
- 1...Ba3
- 2.Sd3#
- 1...Bc3
- 2.Sd3#
- 1...Ba5
- 2.Sd3#
- 1...Sf4
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sh8
- 2.Qxe7#
- 1...Sh4+!
- 1...Qxe3+
- 1.Kg3?
- 1...Qxe3
- 2.Qxe3#
- 1...Sxe5
- 2.Qxe7#
- 2.Qxe5#
- 1...Bd2
- 2.Sd3#
- 1...Ba3
- 2.Sd3#
- 1...Bc3
- 2.Sd3#
- 1...Ba5
- 2.Sd3#
- 1...Sf4
- 2.Qxe7#
- 1...Sh4
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sh8
- 2.Qxe7#
- 1...Be1!
- 1...Qxe3
- 1.Kh3?
- 1...Qxe3
- 2.Qxe3#
- 1...Sxe5
- 2.Qxe7#
- 2.Qxe5#
- 1...Be1
- 2.Sd3#
- 1...Bd2
- 2.Sd3#
- 1...Ba3
- 2.Sd3#
- 1...Bc3
- 2.Sd3#
- 1...Ba5
- 2.Sd3#
- 1...Sh4
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sh8
- 2.Qxe7#
- 1...Sf4+!
- 1...Qxe3
- 1.Kf5?
- 1...Qxe3
- 2.Qxe3#
- 1...Sxe5
- 2.Qxe7#
- 1...Be1
- 2.Sd3#
- 1...Bd2
- 2.Sd3#
- 1...Ba3
- 2.Sd3#
- 1...Bc3
- 2.Sd3#
- 1...Ba5
- 2.Sd3#
- 1...Sf4
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sh8
- 2.Qxe7#
- 1...Sh4+!
- 1...Qxe3
- 1.Kh5?
- 1...Qxe3
- 2.Qxe3#
- 1...Sxe5
- 2.Qxe7#
- 2.Qxe5#
- 1...Be1
- 2.Sd3#
- 1...Bd2
- 2.Sd3#
- 1...Ba3
- 2.Sd3#
- 1...Bc3
- 2.Sd3#
- 1...Ba5
- 2.Sd3#
- 1...Sh4
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sh8
- 2.Qxe7#
- 1...Sf4+!
- 1...Qxe3
- 1.Be2?
- 1...Sxe5+
- 2.Qxe5#
- 1...Qxe3
- 2.Qxe3#
- 1...Be1
- 2.Sd3#
- 1...Bd2
- 2.Sd3#
- 1...Ba3
- 2.Sd3#
- 1...Bc3
- 2.Sd3#
- 1...Ba5
- 2.Sd3#
- 1...Sf4
- 2.Qxe7#
- 1...Sh4
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 1...Sh8
- 2.Qxe7#
- 1...fxe2!
- 1...Sxe5+
- 1.Rea6?
- 1...Sxe5+
- 2.Qxe5#
- 1...Qxe3
- 2.Qxe3#
- 1...Be1
- 2.Sd3#
- 1...Bd2
- 2.Sd3#
- 1...Ba3
- 2.Sd3#
- 1...Bc3
- 2.Sd3#
- 1...Ba5
- 2.Sd3#
- 1...Sf4
- 2.Qxe7#
- 1...Sh4
- 2.Qxe7#
- 1...Sf8
- 2.Qxe7#
- 2.e6#
- 1...Sh8
- 2.Qxe7#
- 2.e6#
- 1...e6!
- 1...Sxe5+
- 1.Rd6?
- threat
- 2.Bxd4#
- 1...Sxe5+
- 2.Qxe5#
- 1...Qxe3
- 2.Qxe3#
- 1...Bc3
- 2.Sd3#
- 1...exd6!
- threat
- 1.Rxg6?
- threat
- 2.Qxe7#
- 1...Qxe3
- 2.Qxe3#
- 1...e6!
- threat
- 1.Kxf3?
- Keys
- 1.Qh6!
- 1...Sxe5+
- 2.Rxe5#
- 1...Qxe3
- 2.Qxe3#
- 1...Be1
- 2.Sd3#
- 1...Bd2
- 2.Sd3#
- 1...Ba3
- 2.Sd3#
- 1...Bc3
- 2.Sd3#
- 1...Ba5
- 2.Sd3#
- 1...Sf4
- 2.Rc6#
- 1...Sh4
- 2.Rc6#
- 1...Sf8
- 2.Rc6#
- 1...Sh8
- 2.Rc6#
- 1...Sxe5+
- 1.Qh6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(c);N_PINP(F),N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- B(b);::S(B)
- S(e);N_GUARD,N_PINP(F)::QAB(I),XP(f)
- S(e);N_GUARD::QAB(I),XP(f)
- S(e);CHECK,OGATE,P_SPINS(e),XP(H)::QAR2(I),XS(e)
- Tries
- Try
- K(G);N_SPINP(F),S_FLIGHT,XP(a)
- Vars
- Q(c);CHECK,N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- S(e);CHECK,OGATE,P_SPINS(e),XP(H)::QAR2(I),XS(e)
- B(b);::S(B)
- S(e);N_GUARD::QAB(I),XP(f)
- Refutation
- S(e);CHECK
- Try
- K(G);N_SPINP(F),P-FLIGHT
- Vars
- Q(c);N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- B(b);::S(B)
- S(e);N_GUARD::QAB(I),XP(f)
- Refutation
- B(b);P_PINS(B)
- Try
- K(G);N_SPINP(F),S_FLIGHT
- Vars
- Q(c);N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- B(b);::S(B)
- S(e);N_GUARD::QAB(I),XP(f)
- Refutation
- S(e);CHECK
- Try
- K(G);N_SPINP(F),S_FLIGHT
- Vars
- Q(c);N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- S(e);N_GUARD,XP(H)::QAB(I),XP(f)
- B(b);::S(B)
- S(e);N_GUARD::QAB(I),XP(f)
- Refutation
- S(e);CHECK
- Try
- K(G);N_SPINP(F),S_FLIGHT
- Vars
- Q(c);N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- B(b);::S(B)
- S(e);N_GUARD::QAB(I),XP(f)
- Refutation
- S(e);CHECK
- Try
- B(A);
- Vars
- S(e);CHECK,OGATE,P_SPINS(e),XP(H)::QAR2(I),XS(e)
- Q(c);N_PINP(F),N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- B(b);::S(B)
- S(e);N_GUARD,N_PINP(F)::QAB(I),XP(f)
- S(e);N_GUARD::QAB(I),XP(f)
- Refutation
- P(a);XB(A)
- Try
- R(J);
- Vars
- S(e);CHECK,OGATE,P_SPINS(e),XP(H)::QAR2(I),XS(e)
- Q(c);N_PINP(F),N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- B(b);::S(B)
- S(e);N_GUARD,N_PINP(F)::QAB(I),XP(f)
- S(e);N_GUARD::QAB(I),XP(f)
- Refutation
- P(f);
- Try
- R(J);
- Threat
- B(C),XQ(c)
- Vars
- S(e);CHECK,OGATE,P_SPINS(e),XP(H)::QAR2(I),XS(e)
- Q(c);N_PINP(F),N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- B(b);::S(B)
- Refutation
- P(f);XR(J)
- Try
- R(J);XS(e)
- Threat
- QAB(I),XP(f)
- Vars
- Q(c);N_PINP(F),N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- Refutation
- P(f);
- Try
- Actual
- Q(I);
- Vars
- S(e);CHECK,OGATE,XP(H)::R(J),XS(e)
- Q(c);N_PINP(F),N_SPINQ(c),OGATE,XB(C)::QAB(I),XQ(c)
- B(b);::S(B)
- S(e);N_PINP(F)::R1(J)
- S(e);::R1(J)
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).