MESON Chess Problem Database
Problem Display
PID: 272660 (6K1/4pBQ1/2N1P1n1/4Pk1b/8/4Bn2/5N2/8 w - - 0 1)
Stevenson, Edward
The Problemist, 1957
#2
8 + 5
SOLUTION
- SOUND
- Sets
- 1...Bg4
- 2.Qxg6#
- 1...Se1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sfh4
- 2.Sd4#
- 1...Sfxe5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sf4
- 2.Sxe7#
- 1...Sgh4
- 2.Sxe7#
- 1...Sgxe5
- 2.Sxe7#
- 1...Sf8
- 2.Sxe7#
- 1...Sh8
- 2.Sxe7#
- 1...Bg4
- Tries
- 1.Bc1?
- 1...Sfxe5
- 2.Sd4#
- 1...Sgxe5
- 2.Sxe7#
- 1...Bg4
- 2.Qxg6#
- 1...Se1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sfh4
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sf4
- 2.Sxe7#
- 1...Sgh4
- 2.Sxe7#
- 1...Sf8
- 2.Sxe7#
- 1...Sh8
- 2.Sxe7#
- 1...Sd2!
- 1...Sfxe5
- 1.Bd2?
- 1...Sfxe5
- 2.Sd4#
- 1...Sgxe5
- 2.Sxe7#
- 1...Bg4
- 2.Qxg6#
- 1...Se1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sfh4
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sf4
- 2.Sxe7#
- 1...Sgh4
- 2.Sxe7#
- 1...Sf8
- 2.Sxe7#
- 1...Sh8
- 2.Sxe7#
- 1...Sxd2!
- 1...Sfxe5
- 1.Bh6?
- 1...Sfxe5
- 2.Sd4#
- 1...Sgxe5
- 2.Sxe7#
- 1...Bg4
- 2.Qxg6#
- 1...Se1
- 2.Sd4#
- 1...Sg1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sfh4
- 2.Sd4#
- 1...Sf4
- 2.Sxe7#
- 1...Sgh4
- 2.Sxe7#
- 1...Sf8
- 2.Sxe7#
- 1...Sh8
- 2.Sxe7#
- 1...Sg5!
- 1...Sfxe5
- 1.Bc1?
- Keys
- 1.Qh6!
- 1...Sfxe5
- 2.Qg5#
- 1...Sgxe5
- 2.Sxe7#
- 2.Qf4#
- 1...Bg4
- 2.Qxg6#
- 1...Se1
- 2.Qg5#
- 2.Qxh5#
- 1...Sg1
- 2.Qg5#
- 2.Qxh5#
- 1...Sd2
- 2.Qg5#
- 2.Qxh5#
- 1...Sh2
- 2.Qg5#
- 2.Qxh5#
- 1...Sd4
- 2.Qg5#
- 2.Qxh5#
- 1...Sfh4
- 2.Qg5#
- 2.Qxh5#
- 1...Sg5
- 2.Qxg5#
- 1...Sf4
- 2.Qxf4#
- 1...Sgh4
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...Sfxe5
- 1.Qh6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- B(c);N_GUARD::QAB1(G),XS(d)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(a);N_GUARD,XP(C)::S(D)
- S(d);N_GUARD::S(D),XP(e)
- S(d);N_GUARD,XP(C)::S(D),XP(e)
- Tries
- Try
- B(B);
- Vars
- S(a);N_GUARD,XP(C)::S(D)
- S(d);N_GUARD,XP(C)::S(D),XP(e)
- B(c);N_GUARD::QAB1(G),XS(d)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(d);N_GUARD::S(D),XP(e)
- Refutation
- S(a);
- Try
- B(B);
- Vars
- S(a);N_GUARD,XP(C)::S(D)
- S(d);N_GUARD,XP(C)::S(D),XP(e)
- B(c);N_GUARD::QAB1(G),XS(d)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(d);N_GUARD::S(D),XP(e)
- Refutation
- S(a);XB(B)
- Try
- B(B);
- Vars
- S(a);N_GUARD,XP(C)::S(D)
- S(d);N_GUARD,XP(C)::S(D),XP(e)
- B(c);N_GUARD::QAB1(G),XS(d)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(d);N_GUARD::S(D),XP(e)
- Refutation
- S(a);
- Try
- Actual
- Q(G);
- Vars
- S(a);N_GUARD,XP(C)::QAR1(G)
- B(c);N_GUARD::QAB1(G),XS(d)
- S(a);N_GUARD::QAR1(G),XS(a)
- S(d);N_GUARD::QAR1(G),XS(d)
- S(d);N_GUARD::QAR1(G)
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).