MESON Chess Problem Database

Problem Display
PID: 170467 (1BQ5/2P1k3/8/6K1/8/8/8/8 w - - 0 1)

Camponovo, Elios

Basler Nachrichten, 1944

1BQ5/2P1k3/8/6K1/8/8/8/8

#2

4 + 1

5454 Near Snap 2018
3713 Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qd7+?
      • 1...Kf8
        • 2.c8Q#
        • 2.c8R#
      • 1...Kxd7!
  • Keys
    • 1.Qb7!
      • threat
        • 2.c8Q#
      • 1...Kd6
        • 2.c8Q#
      • 1...Ke6
        • 2.c8Q#
        • 2.c8B#
      • 1...Kd7
        • 2.c8Q#
      • 1...Kf7
        • 2.c8Q#
      • 1...Ke8
        • 2.c8Q#
        • 2.c8R#
      • 1...Kf8
        • 2.c8Q#
        • 2.c8R#

Anticipated by 9312(1874)

This anticipates 2150(1948), 201747(1971), 858(1982)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);S_FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
  • Actual
    • Q(D);
    • Threat
      • P=Q
    • Vars
      • K(a);S_FLIGHT::P=Q
      • K(a);P-FLIGHT::P=Q
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