MESON Chess Problem Database

Problem Display
PID: 12150 (6Q1/1b2N3/8/2p1p3/3k4/8/3K4/8 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1975

6Q1/1b2N3/8/2p1p3/3k4/8/3K4/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qg4#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Ba6
      • 2.Qd5#
    • 1...Bc8
      • 2.Qd5#
  • Tries
    • 1.Qg1+?
      • 1...Ke4
        • 2.Qe3#
        • 2.Qg4#
      • 1...Kc4!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qd3#
      • 1...Ke4
        • 2.Qe3#
      • 1...c4
        • 2.Qe3#
      • 1...Be4
        • 2.Qc3#
      • 1...Ba6
        • 2.Qd5#
      • 1...e4
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(a);P-FLIGHT::QAR2(C)
    • B(d);N_GUARD::QAR1(C),XB(d)
    • B(d);N_GUARD::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • P(b);SBLOCK::QAB1(C)
      • B(d);SBLOCK::QAB1(C)
      • B(d);N_GUARD::QAR1(C)
      • P(c);SBLOCK::QAB1(C)
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