MESON Chess Problem Database

Problem Display
PID: 57066 (5k2/5P2/5K2/5P2/2P5/8/2Qp4/4B3 w - - 0 1)

Ferber, Eugene

Bulletin de la FFE, 1926

5k2/5P2/5K2/5P2/2P5/8/2Qp4/4B3

#2

6 + 2

5454 Near Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...d1S
      • 2.Bb4#
    • 1...d1B
      • 2.Bb4#
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qa3#
      • 1...dxc1Q
        • 2.Bb4#
      • 1...dxc1S
        • 2.Bb4#
      • 1...dxc1B
        • 2.Bb4#
      • 1...dxc1R
        • 2.Bb4#
      • 1...dxe1Q
        • 2.Qh6#
      • 1...dxe1B
        • 2.Qh6#
      • 1...dxe1R
        • 2.Qh6#
      • 1...d1Q
        • 2.Qh6#
      • 1...d1R
        • 2.Qh6#

This anticipates 267899(2019)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 2
  • Sets
    • P(a);OGATE::B(A)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • P(a);OGATE,XQ(B)::B(A)
      • P(a);OGATE,XB(A)::QAB(B)
      • P(a);OGATE::QAB(B)
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