MESON Chess Problem Database

Problem Display
PID: 208735 (k5K1/Pp1N4/2p5/2p5/8/4B3/4P1Q1/8 w - - 0 1)

Townsend, Alonzo

Newark Sunday Call, 1875

k5K1/Pp1N4/2p5/2p5/8/4B3/4P1Q1/8

#2

6 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bxc5?
      • 1...b5
        • 2.Qxc6#
      • 1...b6!
    • 1.Qxc6?
      • 1...Kxa7
        • 2.Qa4#
      • 1...c4
        • 2.Qc8#
      • 1...bxc6!
  • Keys
    • 1.Qg7!
      • 1...Kxa7
        • 2.Qa1#
      • 1...b5
        • 2.Sb6#
      • 1...b6
        • 2.Sxb6#
      • 1...c4
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);XP(a)
      • Vars
        • P(c);OGATEB,P_SPINP(b)::QAB(B),XP(b)
      • Refutation
        • P(c);P_SPINP(b)
    • Try
      • Q(B);P_PINP(c),XP(b)
      • Vars
        • K(d);N_SPINP(c),OGATEB,P-FLIGHT,P_SPINP(a),XP(D)::QAR(B)
        • P(a);::QAR2(B)
      • Refutation
        • P(c);N_SPINP(c),XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(d);OGATEB,P-FLIGHT,P_SPINP(a),XP(D)::QAR(B)
      • P(c);::S(E)
      • P(c);::S(E),XP(c)
      • P(a);::QAR(B)
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Developed and maintained by Brian Stephenson.
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