MESON Chess Problem Database

Problem Display
PID: 145312 (B2N1B2/4N3/3P3r/4k2p/1P3RpR/2prp3/2PpP3/3K2Q1 w - - 0 1)

Burgess, HJ

Prize, Braille Chess Magazine, 1940

B2N1B2/4N3/3P3r/4k2p/1P3RpR/2prp3/2PpP3/3K2Q1

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rdxd6
      • 2.Qxe3#
    • 1...Rg6
      • 2.Sxg6#
    • 1...Rh7
      • 2.Sg6#
    • 1...Rh8
      • 2.Sg6#
  • Tries
    • 1.Sec6+?
      • 1...Kd5
        • 2.Qh1#
        • 2.Qg2#
      • 1...Kxf4!
    • 1.Sf7+?
      • 1...Kxf4
        • 2.Bxh6#
        • 2.Qh2#
      • 1...Ke6!
    • 1.Rxh5+?
      • 1...Kxf4
        • 2.Bxh6#
        • 2.Rf5#
      • 1...Rxh5
        • 2.Sg6#
      • 1...Kxd6!
  • Keys
    • 1.Qg3!
      • 1...Kxd6
        • 2.Rd4#
      • 1...Rdxd6
        • 2.Qxe3#
      • 1...Rhxd6
        • 2.Rxh5#
      • 1...Rd4
        • 2.Rf5#
      • 1...Rd5
        • 2.Sec6#
      • 1...Re6
        • 2.Sf7#
      • 1...Rf6
        • 2.Re4#
      • 1...Rg6
        • 2.Sxg6#
      • 1...Rh7
        • 2.Sg6#
      • 1...Rh8
        • 2.Sg6#

This is a version

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,SBLOCK,XP(H)::QAR2(B),XP(d)
    • R(h);N_GUARD::S(I),XR(h)
    • R(h);N_GUARD::S(I)
  • Tries
    • Try
      • S(I);CHECK
      • Refutation
        • K(f);P_SPINP(e),S_FLIGHT,XR(F)
    • Try
      • S(K);CHECK
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • R(G);CHECK,XP(g)
      • Vars
        • R(h);XR(G)::S(I)
      • Refutation
        • K(f);S_FLIGHT,XP(H)
  • Actual
    • Q(B);
    • Vars
      • K(f);S_FLIGHT,XP(H)::QAB(B)+R(F),DCHECK
      • R(c);N_GUARD,SBLOCK,XP(H)::QAR2(B),XP(d)
      • R(h);N_GUARD,SBLOCK,XP(H)::R(G),XP(g)
      • R(c);SBLOCK::QAB(B)+R(F),DCHECK
      • R(c);SBLOCK::S(I)
      • R(h);SBLOCK::S(K)
      • R(h);SBLOCK::QAB(B)+R(F),DCHECK
      • R(h);N_GUARD::S(I),XR(h)
      • R(h);N_GUARD::S(I)
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