MESON Chess Problem Database

Problem Display
PID: 45403 (8/1n4b1/pN3p2/2p5/P1p1k3/1Q2P1BB/1nP1K3/8 w - - 0 1)

Hughes, FG

Recomm., BCF 048. Ty., 1944-1945

8/1n4b1/pN3p2/2p5/P1p1k3/1Q2P1BB/1nP1K3/8

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qxc4#
    • 1...Sd3
      • 2.Qxc4#
    • 1...Sxa4
      • 2.Qxc4#
    • 1...c3
      • 2.Qd5#
      • 2.Qe6#
    • 1...f5
      • 2.Bg2#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.Sd2#
        • 2.Qxb7#
      • 1...Sxc4
        • 2.Qxc4#
        • 2.Qd3#
        • 2.Qxb7#
      • 1...Sa5
        • 2.Sd2#
        • 2.Sd6#
      • 1...Sd6
        • 2.Sd2#
        • 2.Sxd6#
      • 1...Sd8
        • 2.Sd2#
        • 2.Sd6#
      • 1...Kd5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sc3#
      • 1...Kxd5
        • 2.Qxb7#
      • 1...Sxa4
        • 2.Qxc4#
      • 1...Sd1
        • 2.Qxc4#
      • 1...c3
        • 2.Sxc3#
      • 1...f5
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::QAR2(C),XP(b)
    • S(a);N_GUARD,XP(G)::QAR2(C),XP(b)
    • P(f);SBLOCK::B(F)
  • Tries
    • Try
      • S(H);XP(b)
      • Threat
        • DUALS(2)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(c);OGATEB,P_SPINP(b),S_FLIGHT,XS(H)::QAB(C),XS(g)
      • S(a);N_GUARD,XP(G)::QAR2(C),XP(b)
      • S(a);N_GUARD::QAR2(C),XP(b)
      • P(b);::S(H),XP(b)
      • P(f);SBLOCK::B(F)
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