MESON Chess Problem Database

Problem Display
PID: 168733 (4B3/8/5p2/4pk2/8/6K1/2P5/1Q6 w - - 0 1)

Zuk, O

Sachmatija, 2012

4B3/8/5p2/4pk2/8/6K1/2P5/1Q6

#2

4 + 3

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qb3?
      • 1...Ke4
        • 2.Qd3#
      • 1...e4
        • 2.Qd5#
      • 1...Kg5!
    • 1.Qb5?
      • 1...Ke4
        • 2.Qd3#
      • 1...Ke6
        • 2.Qd7#
      • 1...Kg5!
    • 1.Qb7?
      • 1...Ke6
        • 2.Qd7#
      • 1...e4
        • 2.Qd5#
      • 1...Kg5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qg4#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kg5
        • 2.Qh5#
      • 1...Ke6
        • 2.Qd7#
      • 1...e4
        • 2.Qd5#

Anticipated by 164038(2006)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);P_PINP(a)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);P-FLIGHT::QAR1(A)
      • P(a);OGATEB::QAR2(A)
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