MESON Chess Problem Database

Problem Display
PID: 196977 (8/7B/1Q2N3/3k3K/pPN2P2/r3p3/q2n4/8 w - - 0 1)

Crouch, E

British Chess Magazine, 1919

8/7B/1Q2N3/3k3K/pPN2P2/r3p3/q2n4/8

#2

7 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Sxe3#
    • 1...Sxc4
      • 2.Sc7#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Bg8#
        • 2.Qc5#
      • 1...Qxc4
        • 2.Bg8#
      • 1...Sb3
        • 2.Sxe3#
        • 2.Bg8#
      • 1...Se4
        • 2.Bg8#
      • 1...Kxc4!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qc5#
      • 1...Kxc4
        • 2.Qc5#
      • 1...Qxc4
        • 2.Qd8#
      • 1...Sb3
        • 2.Sxe3#
      • 1...Se4
        • 2.Bg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(b);S_CUTR(c)::S(B),XP(d)
    • S(b);SBLOCK,XS(B)::S(F)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);SBLOCK,XS(B)::B(G)
        • S(b);::B(G)
      • Refutation
        • K(f);S_FLIGHT,XS(B)
  • Actual
    • S(F);
    • Threat
      • QAR1(E)
    • Vars
      • K(f);S_FLIGHT,XS(B)::QAR1(E)
      • Q(a);SBLOCK,XS(B)::QAR(E)
      • S(b);S_CUTR(c)::S(B),XP(d)
      • S(b);SBLOCK::B(G)
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