MESON Chess Problem Database

Problem Display
PID: 87531 (3N4/1p3N2/bb3B2/3k4/1Q6/K2p1P2/8/8 w - - 0 1)

Goldschmeding, Cornelis

The Problemist, 1987

3N4/1p3N2/bb3B2/3k4/1Q6/K2p1P2/8/8

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4
      • 2.Qd6#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Ba5
      • 2.Qd4#
    • 1...Bc7
      • 2.Qd4#
  • Tries
    • 1.Be7?
      • threat
        • 2.Qe4#
      • 1...Bc4
        • 2.Qd6#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Bd4!
  • Keys
    • 1.Kb3!
      • threat
        • 2.Qd6#
      • 1...Bc4+
        • 2.Qxc4#
      • 1...Bc5
        • 2.Qe4#
      • 1...Bc7
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(c);SBLOCK::QAR1(C)
    • B(d);N_GUARD::QAR1(C),XB(d)
    • B(d);N_GUARD::QAR1(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAB1(C)
      • Vars
        • B(c);SBLOCK::QAR1(C)
        • B(d);N_GUARD,P_PINQ(C)::QAR1(C),XB(d)
      • Refutation
        • B(d);
  • Actual
    • K(A);P-FLIGHT
    • Threat
      • QAR1(C)
    • Vars
      • B(c);CHECK,N_GUARD::QAB1(C),XB(c)
      • B(d);SBLOCK::QAB1(C)
      • B(d);N_GUARD::QAR1(C)
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