MESON Chess Problem Database

Problem Display
PID: 7504 (5n2/3p2Q1/8/4r1B1/1Kpk4/2Npp3/3n4/8 w - - 0 1)

Barnes, Barry Peter

The Independent, 1990

5n2/3p2Q1/8/4r1B1/1Kpk4/2Npp3/3n4/8

#2

4 + 8

3310 2345 Chess Problems 1997
4199 Barnes about Chess Problems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qa7#
  • Tries
    • 1.Qxd7+?
      • 1...Rd5
        • 2.Bf6#
        • 2.Qxd5#
      • 1...Sxd7!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Bxe5#
      • 1...e2
        • 2.Qg1#
      • 1...Sf3
        • 2.Qg4#
      • 1...Sg6
        • 2.Qxd7#
      • 1...d6
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(g);OGATE::QAB(D)
  • Tries
    • Try
      • Q(D);CHECK,N_PINR(f),XP(g)
      • Refutation
        • S(h);XQ(D)
  • Actual
    • B(C);
    • Threat
      • B(C),XR(f)
    • Vars
      • P(c);OGATEB::QAB(D)
      • S(a);N_GUARD::QAR(D)
      • S(h);N_GUARD::QAR(D),XP(g)
      • P(g);OGATE::QAB(D)
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