MESON Chess Problem Database

Problem Display
PID: 6079 (4R3/3n4/5p1p/1P1kbb1R/1K2Np2/2p2B2/2P2Q2/8 w - - 0 1)

Mansfield, Comins

The Problemist, 1926

4R3/3n4/5p1p/1P1kbb1R/1K2Np2/2p2B2/2P2Q2/8

#2

8 + 8

3202 Complete Mansfield/I 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6+
      • 2.Sc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sb6
      • 2.Qc5#
    • 1...Sb8
      • 2.Qc5#
    • 1...Sf8
      • 2.Qc5#
  • Tries
    • 1.Rxf5?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...Sb8
        • 2.Qc5#
      • 1...Sf8
        • 2.Qc5#
      • 1...h5!
  • Keys
    • 1.Qg1!
      • 1...Bd6+
        • 2.Sc5#
      • 1...Bxe4
        • 2.Qd1#
      • 1...Bd4
        • 2.Qg8#
      • 1...Bc7
        • 2.Qd1#
      • 1...Bb8
        • 2.Qd1#
      • 1...Bh3
        • 2.Qd1#
      • 1...Bg4
        • 2.Qd1#
      • 1...Be6
        • 2.Qd1#
      • 1...Bg6
        • 2.Qd1#
      • 1...Bh7
        • 2.Qd1#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...Sb8
        • 2.Qc5#
      • 1...Sf8
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • B(d);CHECK,P_SPINB(e),SBLOCK::B(C)+S(E)
    • S(h);N_GUARD::QAR1(B),XS(h)
    • S(h);N_GUARD::QAR1(B)
  • Tries
    • Try
      • R(G);P_PINB(d),XB(e)
      • Vars
        • S(h);N_GUARD::QAR1(B),XS(h)
        • S(h);N_GUARD::QAR1(B)
      • Refutation
        • P(g);
  • Actual
    • Q(B);
    • Vars
      • B(d);CHECK,P_SPINB(e),SBLOCK::B(C)+S(E)
      • B(e);P_SPINB(e),S_CUTB(d),XS(E)::QAR(B)
      • B(d);P_SPINB(e),SBLOCK::QAB(B)
      • B(d);N_GUARD,P_SPINB(e)::QAR(B)
      • B(e);P_SPINB(d)::QAR(B)
      • S(h);N_GUARD::QAR1(B),XS(h)
      • S(h);N_GUARD::QAR1(B)
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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).