MESON Chess Problem Database

Problem Display
PID: 164038 (4B3/8/3p4/3kp3/8/2K3PQ/8/8 w - - 0 1)

Romanovskis, Vladimirs

Sachmatija, 2006

4B3/8/3p4/3kp3/8/2K3PQ/8/8

#2

4 + 3

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Qf5#
  • Tries
    • 1.Qg4?
      • threat
        • 2.Qc4#
      • 1...e4
        • 2.Qf5#
      • 1...Kc5!
    • 1.Qd7?
      • 1...Kc5
        • 2.Qb5#
        • 2.Qc6#
      • 1...e4
        • 2.Qf5#
      • 1...Ke4!
    • 1.Qc8?
      • threat
        • 2.Qc4#
      • 1...e4
        • 2.Qf5#
      • 1...Ke4!
    • 1.Qh7?
      • 1...Ke6
        • 2.Qf7#
      • 1...e4
        • 2.Qf5#
      • 1...Kc5!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qc4#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kc5
        • 2.Qb5#
      • 1...Ke6
        • 2.Qf7#
      • 1...e4
        • 2.Qf5#

This anticipates 168733(2012)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::QAR2(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • P(b);OGATEB::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);P_PINP(c)
      • Vars
        • P(b);OGATEB::QAR2(C)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • P(b);OGATEB::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • P(b);OGATEB::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(a);S_FLIGHT::QAB1(C)
      • K(a);P-FLIGHT::QAR1(C)
      • P(b);OGATEB::QAR2(C)
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