MESON Chess Problem Database

Problem Display
PID: 52518 (8/1K6/1p6/2N1N1P1/3k2r1/2r5/B2P3b/1Q6 w - - 0 1)

Dawson, Thomas Rayner

Chess Amateur (The), 1908

8/1K6/1p6/2N1N1P1/3k2r1/2r5/B2P3b/1Q6

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qxb6#
    • 1...Rxc5
      • 2.Sf3#
    • 1...Bxe5
      • 2.Se6#
    • 1...bxc5
      • 2.Sc6#
  • Tries
    • 1.Sf3+?
      • 1...Kxc5
        • 2.Qxb6#
      • 1...Rxf3!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Qd6#
      • 1...Kxc5
        • 2.Qxb6#
      • 1...Kxe5
        • 2.Qf6#
      • 1...Rxc5
        • 2.Sf3#
      • 1...Bxe5
        • 2.Se6#
      • 1...bxc5
        • 2.Sc6#

There are these versions: 147210

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(A),XP(e)
    • R(b);N_GUARD,SBLOCK,XS(D)::S(E)
    • B(a);SBLOCK,XS(E)::S(D)
    • P(e);SBLOCK,XS(D)::S(E)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(D)::QAB1(A),XP(e)
      • Refutation
        • R(b);XS(E)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(A),XP(e)
      • K(c);OGATEB,S_FLIGHT,XS(E)::QAB1(A)
      • R(b);N_GUARD,SBLOCK,XS(D)::S(E)
      • B(a);SBLOCK,XS(E)::S(D)
      • P(e);SBLOCK,XS(D)::S(E)
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