MESON Chess Problem Database

Problem Display
PID: 6951 (2b5/1q2p3/2p2b1B/8/r1p5/1Rp4k/5PNN/1Q1B2K1 w - - 0 1)

Hume, George

Chess, 1935

2b5/1q2p3/2p2b1B/8/r1p5/1Rp4k/5PNN/1Q1B2K1

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Sf4#
    • 1...Bg4
      • 2.Bxg4#
    • 1...Bf5
      • 2.Qxf5#
    • 1...cxb3
      • 2.Qd3#
    • 1...e5
      • 2.Rxc3#
    • 1...e6
      • 2.Bg4#
  • Tries
    • 1.Bg5?
      • threat
        • 2.Sf4#
        • 2.Qh7#
      • 1...cxb3
        • 2.Qd3#
      • 1...Qc7
        • 2.Qh7#
      • 1...Qb8
        • 2.Qh7#
      • 1...Be5
        • 2.Qh7#
      • 1...Bg7
        • 2.Sf4#
      • 1...Bg4
        • 2.Sf4#
        • 2.Bxg4#
      • 1...Bf5
        • 2.Sf4#
        • 2.Qxf5#
      • 1...e5
        • 2.Rxc3#
      • 1...e6
        • 2.Sf4#
        • 2.Bg4#
      • 1...Bxg5!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Bg5#
      • 1...cxb3
        • 2.Qd3#
      • 1...Bh4
        • 2.Sf4#
      • 1...Bg5
        • 2.Bxg5#
      • 1...Bg7
        • 2.Bxg7#
      • 1...Bg4
        • 2.Bxg4#
      • 1...Bf5
        • 2.Qxf5#
      • 1...e5
        • 2.Rxc3#
      • 1...e6
        • 2.Bg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(f);SBLOCK::S(E)
    • B(i);N_GUARD::B(B),XB(i)
    • B(i);N_GUARD::QAB(A),XB(i)
    • P(d);N_GUARD,N_SPINP(a),XR(G)::QAR(A)
    • P(h);S_CUTB(f)::R(G),XP(a)
    • P(h);S_CUTB(i)::B(B)
  • Tries
    • Try
      • B(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);N_GUARD,N_SPINP(a),XR(G)::QAR(A)
        • Q(g);::QAR(A)
        • B(f);::QAR(A)
        • B(f);::S(E)
        • P(h);S_CUTB(f)::R(G),XP(a)
      • Refutation
        • B(f);XB(H)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)+B(H)
    • Vars
      • P(d);N_GUARD,N_SPINP(a),XR(G)::QAR(A)
      • B(f);SBLOCK::S(E)
      • B(f);::QAR(A)+B(H),XB(f)
      • B(f);N_GUARD::QAR(A)+B(H),XB(f)
      • B(i);N_GUARD::B(B),XB(i)
      • B(i);N_GUARD::QAB(A),XB(i)
      • P(h);S_CUTB(f)::R(G),XP(a)
      • P(h);S_CUTB(i)::B(B)
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