MESON Chess Problem Database

Problem Display
PID: 76534 (8/8/8/3K4/4N3/4pk2/6N1/7Q w - - 0 1)

Butwillo, Brother

The Tablet, 1933

(First published on Sat Nov 25 1933)

8/8/8/3K4/4N3/4pk2/6N1/7Q

#2

4 + 2

3713 Snap 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Ke2
      • 2.Sf4#
    • 1...e2
      • 2.Qh3#
  • Tries
    • 1.Kd4?
      • 1...Ke2
        • 2.Sf4#
      • 1...e2
        • 2.Qh3#
      • 1...Kg4!
  • Keys
    • 1.Ke5!
      • 1...Ke2
        • 2.Sf4#
      • 1...Kg4
        • 2.Sxe3#
      • 1...e2
        • 2.Qh3#

This anticipates 15921(1989)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::S(B)
    • P(a);SBLOCK::QAR2(A)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::S(B)
        • P(a);SBLOCK::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • K(D);P-FLIGHT
    • Vars
      • K(b);S_FLIGHT::S(B)
      • K(b);S_FLIGHT::S(B),XP(a)
      • P(a);SBLOCK::QAR2(A)
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