MESON Chess Problem Database
Problem Display
PID: 81516 (8/8/3N1Kp1/2p3P1/2Bkb2Q/2pn4/3n2P1/B4N2 w - - 0 1)
Friedgood, David F
Macleod, Norman Alasdair
Prize, Ramsgate, 1984
#2
8 + 7
| 6455 | The Chessboard Adventures of Norman Macleod | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Qxe4#
- 1...Sxf1
- 2.Qxe4#
- 1...Sb3
- 2.Qxe4#
- 1...Sf3
- 2.Qxe4#
- 1...Sxc4
- 2.Qxe4#
- 1...Sc1
- 2.Qf2#
- 1...Se1
- 2.Qf2#
- 1...Sb2
- 2.Qf2#
- 1...Sf2
- 2.Qxf2#
- 1...Sb4
- 2.Qf2#
- 1...Sf4
- 2.Qf2#
- 1...Se5
- 2.Qf2#
- 1...Sb1
- Tries
- 1.Ke6?
- 1...Sxf1
- 2.Qxe4#
- 1...Sxc4
- 2.Sb5#
- 2.Qxe4#
- 1...Sb1
- 2.Qxe4#
- 1...Sb3
- 2.Qxe4#
- 1...Sf3
- 2.Qxe4#
- 1...Sc1
- 2.Qf2#
- 2.Qh8#
- 1...Se1
- 2.Qf2#
- 2.Qh8#
- 1...Sb2
- 2.Qf2#
- 2.Qh8#
- 1...Sf2
- 2.Qxf2#
- 2.Qh8#
- 1...Sb4
- 2.Qf2#
- 2.Qh8#
- 1...Se5
- 2.Qf2#
- 1...Sf4+!
- 1...Sxf1
- 1.Sxd2?
- threat
- 2.Qxe4#
- 1...Sf2
- 2.Qxf2#
- 1...Sf4
- 2.Qf2#
- 1...Ke3!
- threat
- 1.Sh2?
- 1...Sxc4
- 2.Qxe4#
- 1...Sb1
- 2.Qxe4#
- 1...Sf1
- 2.Qxe4#
- 1...Sb3
- 2.Qxe4#
- 1...Sf3
- 2.Qxe4#
- 1...Sc1
- 2.Qf2#
- 1...Se1
- 2.Qf2#
- 1...Sb2
- 2.Qf2#
- 1...Sf2
- 2.Qxf2#
- 1...Sb4
- 2.Qf2#
- 1...Sf4
- 2.Qf2#
- 1...Se5
- 2.Qf2#
- 1...Ke3!
- 1...Sxc4
- 1.Bb2?
- 1...Sxf1
- 2.Qxe4#
- 1...Sxc4
- 2.Qxe4#
- 1...Sxb2
- 2.Qf2#
- 1...Sc1
- 2.Qf2#
- 1...Sb1
- 2.Qxe4#
- 1...Sb3
- 2.Qxe4#
- 1...Sf3
- 2.Qxe4#
- 1...Se1
- 2.Qf2#
- 1...Sf2
- 2.Qxf2#
- 1...Sb4
- 2.Qf2#
- 1...Sf4
- 2.Qf2#
- 1...Se5
- 2.Qf2#
- 1...cxb2!
- 1...Sxf1
- 1.Qe1?
- threat
- 2.Qe3#
- 1...Sxf1
- 2.Bxc3#
- 2.Qxe4#
- 1...Sxc4
- 2.Qxe4#
- 1...Sxe1!
- threat
- 1.Qf4?
- threat
- 2.Qe3#
- 1...Sxf1
- 2.Qxe4#
- 1...Sxc4
- 2.Qxe4#
- 1...Sxf4!
- threat
- 1.Ke6?
- Keys
- 1.Ke7!
- 1...Ke5
- 2.Bxc3#
- 1...Sxf1
- 2.Qxe4#
- 1...Sxc4
- 2.Qxe4#
- 1...Sb1
- 2.Qxe4#
- 1...Sb3
- 2.Qxe4#
- 1...Sf3
- 2.Qxe4#
- 1...Sc1
- 2.Qh8#
- 1...Se1
- 2.Qh8#
- 1...Sb2
- 2.Qh8#
- 1...Sf2
- 2.Qh8#
- 1...Sb4
- 2.Qh8#
- 1...Sf4
- 2.Qh8#
- 1...Se5
- 2.Qf2#
- 1...Ke5
- 1.Ke7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAR1(E),XB(e)
- S(a);N_GUARD,XS(B)::QAR1(E),XB(e)
- S(a);N_GUARD,XB(D)::QAR1(E),XB(e)
- S(c);N_GUARD::QAB(E)
- S(c);N_GUARD,N_SPINP(b)::QAB(E)
- S(c);N_GUARD::QAB(E),XS(c)
- S(c);N_GUARD,N_SPINB(e)::QAB(E)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- S(a);N_GUARD,XS(B)::QAR1(E),XB(e)
- S(a);N_GUARD::QAR1(E),XB(e)
- S(c);N_GUARD::QAB(E)
- Refutation
- S(c);CHECK,N_SPINB(e)
- Try
- S(B);XS(a)
- Threat
- QAR1(E),XB(e)
- Vars
- S(c);N_GUARD::QAB(E),XS(c)
- S(c);N_GUARD,N_SPINB(e)::QAB(E)
- Refutation
- K(d);N_SPINB(e),N_SPINP(b),S_FLIGHT
- Try
- S(B);
- Vars
- S(a);N_GUARD,XB(D)::QAR1(E),XB(e)
- S(a);N_GUARD::QAR1(E),XB(e)
- S(c);N_GUARD::QAB(E)
- S(c);N_GUARD,N_SPINP(b)::QAB(E)
- S(c);N_GUARD::QAB(E),XS(c)
- S(c);N_GUARD,N_SPINB(e)::QAB(E)
- Refutation
- K(d);N_SPINB(e),N_SPINP(b),S_FLIGHT
- Try
- B(A);
- Vars
- S(a);N_GUARD,XS(B)::QAR1(E),XB(e)
- S(a);N_GUARD,XB(D)::QAR1(E),XB(e)
- S(c);N_GUARD,N_SPINP(b),XB(A)::QAB(E)
- S(c);N_GUARD::QAB(E)
- S(a);N_GUARD::QAR1(E),XB(e)
- S(c);N_GUARD::QAB(E),XS(c)
- S(c);N_GUARD,N_SPINB(e)::QAB(E)
- Refutation
- P(b);N_SPINP(b),XB(A)
- Try
- Q(E);N_PINB(e)
- Threat
- QAB1(E)
- Vars
- S(a);N_GUARD,XB(D)::QAR1(E),XB(e)
- Refutation
- S(c);XQ(E)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(a);N_GUARD,XS(B)::QAR1(E),XB(e)
- S(a);N_GUARD,XB(D)::QAR1(E),XB(e)
- Refutation
- S(c);N_SPINB(e),XQ(E)
- Try
- Actual
- K(H);S_FLIGHT
- Vars
- K(d);N_SPINB(e),S_FLIGHT::B(A),XP(b)
- S(a);N_GUARD,XS(B)::QAR1(E),XB(e)
- S(a);N_GUARD,XB(D)::QAR1(E),XB(e)
- S(a);N_GUARD::QAR1(E),XB(e)
- S(c);N_GUARD::QAB(E)
- S(c);N_GUARD,N_SPINP(b)::QAB(E)
- S(c);N_GUARD,N_SPINB(e)::QAB(E)
- S(c);N_GUARD,SBLOCK::QAB(E)
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).