MESON Chess Problem Database
Problem Display
PID: 34787 (Q7/PK6/2rpN3/2pk2p1/2N2pB1/1P3P2/8/8 w - - 0 1)
Eddy, Edwin John
De Problemist, 1929
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Ra6
- 2.Kxa6#
- 1...Rb6+
- 2.Kxb6#
- 1...Rc7+
- 2.Kxc7#
- 1...Rc8
- 2.Kxc8#
- 1...Ra6
- Tries
- 1.Se3+?
- 1...Ke5
- 2.Qh8#
- 1...fxe3!
- 1...Ke5
- 1.Sb6+?
- 1...Ke5
- 2.Qh8#
- 1...Rxb6+!
- 1...Ke5
- 1.Sxf4+?
- 1...Kd4
- 2.Qh8#
- 1...gxf4!
- 1...Kd4
- 1.Bh3?
- 1...Rb6+
- 2.Kxb6#
- 1...Rc7+
- 2.Kxc7#
- 1...Ra6
- 2.Kxa6#
- 1...Rc8
- 2.Kxc8#
- 1...g4!
- 1...Rb6+
- 1.Bf5?
- 1...Rb6+
- 2.Kxb6#
- 1...Rc7+
- 2.Kxc7#
- 1...Ra6
- 2.Kxa6#
- 1...Rc8
- 2.Kxc8#
- 1...g4!
- 1...Rb6+
- 1.Se3+?
- Keys
- 1.Qh8!
- 1...Rb6+
- 2.Sxb6#
- 1...Rc7+
- 2.Sxc7#
- 1...Ra6
- 2.Sc7#
- 1...Rc8
- 2.Sb6#
- 1...Rb6+
- 1.Qh8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(e);::QAB(H)+K(G),XR(e)
- R(e);CHECK::QAB(H)+K(G),XR(e)
- Tries
- Try
- S(C);CHECK
- Vars
- K(c);P-FLIGHT::QAB(H)
- Refutation
- P(a);XS(C)
- Try
- S(C);CHECK
- Vars
- K(c);P-FLIGHT::QAB(H)
- Refutation
- R(e);CHECK,XS(C)
- Try
- S(E);CHECK,XP(a)
- Vars
- K(c);P-FLIGHT::QAB(H)
- Refutation
- P(d);XS(E)
- Try
- B(D);
- Vars
- R(e);CHECK::QAB(H)+K(G),XR(e)
- R(e);::QAB(H)+K(G),XR(e)
- Refutation
- P(d);
- Try
- B(D);
- Vars
- R(e);CHECK::QAB(H)+K(G),XR(e)
- R(e);::QAB(H)+K(G),XR(e)
- Refutation
- P(d);
- Try
- Actual
- Q(H);
- Vars
- R(e);CHECK,N_GUARD::S(C),XR(e)
- R(e);CHECK,N_GUARD::S(E),XR(e)
- R(e);N_GUARD::S(E)
- R(e);N_GUARD::S(C)
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).