MESON Chess Problem Database

Problem Display
PID: 2109 (Q7/8/8/bpp1N3/k7/8/NR5K/8 w - - 0 1)

Brown, Theodore Morris

Source?, 0000

Q7/8/8/bpp1N3/k7/8/NR5K/8

#2

5 + 4

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4?
      • threat
        • 2.Sc3#
        • 2.Qxa5#
      • 1...b4
        • 2.Qc6#
        • 2.Qxa5#
        • 2.Qe8#
      • 1...bxc4!
    • 1.Rb4+?
      • 1...Ka3
        • 2.Qxa5#
      • 1...cxb4!
  • Keys
    • 1.Rxb5!
      • threat
        • 2.Qxa5#
      • 1...Ka3
        • 2.Qxa5#
      • 1...Kxb5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);XS(D)
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(E),XB(b)
      • Refutation
        • P(d);XR(B)
  • Actual
    • R(B);XP(c)
    • Threat
      • QAR1(E),XB(b)
    • Vars
      • K(a);P-FLIGHT::QAR2(E),XB(b)
      • K(a);N_SPINB(b),OGATEB,S_FLIGHT,XR(B)::QAB1(E)
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