MESON Chess Problem Database

Problem Display
PID: 200087 (8/bpN5/p7/p2BQp2/k4K2/1R2p3/1P2N3/3n4 w - - 0 1)

Fulpius, Jaques

The Problemist, 1982

8/bpN5/p7/p2BQp2/k4K2/1R2p3/1P2N3/3n4

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qxd4#
    • 1...Bb6
      • 2.Qe8#
    • 1...Bb8
      • 2.Qd4#
    • 1...Sxb2
      • 2.Sc3#
    • 1...Sf2
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...b6
      • 2.Qd4#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Ra3#
        • 2.Qc4#
      • 1...Sxb2
        • 2.Ra3#
      • 1...Sxc3
        • 2.Sxc3#
      • 1...b5
        • 2.Ra3#
      • 1...Bc5!
    • 1.Qe4+?
      • 1...Bd4
        • 2.Qxd4#
      • 1...fxe4!
  • Keys
    • 1.Sxa6!
      • 1...Sxb2
        • 2.Sc3#
      • 1...bxa6
        • 2.Qe8#
      • 1...Bc5
        • 2.Sxc5#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bb6
        • 2.Qe8#
      • 1...Bb8
        • 2.Sc5#
      • 1...Sf2
        • 2.Sc3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...b5
        • 2.Ra3#
      • 1...b6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(g);N_GUARD::QAR(F),XB(g)
    • B(g);S_CUTP(h)::QAB(F)
    • B(g);N_GUARD::QAR(F)
    • S(a);N_GUARD,XP(A)::S(B)
    • S(a);N_GUARD::S(B)
    • S(a);N_GUARD::S(B),XS(a)
    • P(h);S_CUTB(g)::QAR(F)
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(A)::R1(C)
        • S(a);XQ(F)::S(B),XS(a)
        • P(h);::R1(C)
      • Refutation
        • B(g);
    • Try
      • Q(F);CHECK
      • Vars
        • B(g);N_GUARD,P_SPINB(g)::QAR(F),XB(g)
      • Refutation
        • P(e);XQ(F)
  • Actual
    • S(G);XP(f)
    • Vars
      • S(a);N_GUARD,XP(A)::S(B)
      • P(h);N_GUARD,XS(G)::QAB(F)
      • B(g);N_GUARD::S(G),XB(g)
      • B(g);N_GUARD::QAR(F),XB(g)
      • B(g);S_CUTP(h)::QAB(F)
      • B(g);N_GUARD,P_PINQ(F)::S(G)
      • S(a);N_GUARD::S(B)
      • S(a);N_GUARD::S(B),XS(a)
      • P(h);SBLOCK::R1(C)
      • P(h);S_CUTB(g)::QAR(F)
HTML5 logo

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).