MESON Chess Problem Database

Problem Display
PID: 42400 (4N3/7p/6pk/7p/6p1/4K1pP/7Q/2B3R1 w - - 0 1)

Barnes, Barry Peter

4th HM., Mansfield MT, 1987

4N3/7p/6pk/7p/6p1/4K1pP/7Q/2B3R1

#2

6 + 6

4199 Barnes about Chess Problems 2001

SOLUTION

  • SOUND
  • Tries
    • 1.hxg4?
      • 1...Kg5
        • 2.Kf3#
      • 1...gxh2
        • 2.g5#
      • 1...g5
        • 2.Qxh5#
      • 1...h4
        • 2.Qxh4#
      • 1...g2!
  • Keys
    • 1.Qxg3!
      • 1...Kg5
        • 2.Ke4#
      • 1...gxh3
        • 2.Qg5#
      • 1...h4
        • 2.Qxh4#
      • 1...g5
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(E);P_PINP(c),XP(b)
      • Vars
        • K(e);N_SPINP(c),S_FLIGHT::B(A)+K(D)
        • P(a);N_SPINP(c),XQ(C)::P(E)
        • P(d);N_GUARD::QAR1(C),XP(c)
        • P(c);OGATEB::QAR2(C),XP(c)
      • Refutation
        • P(a);
  • Actual
    • Q(C);XP(a)
    • Vars
      • K(e);P_SPINP(b),S_FLIGHT::B(A)+K(D)
      • P(b);OGATE,XP(E)::QAB1(C)
      • P(c);OGATEB::QAR2(C),XP(c)
      • P(d);OGATEB,SBLOCK::QAR(C)
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