MESON Chess Problem Database

Problem Display
PID: 95555 (8/8/2Qpp3/6B1/P2k4/1K6/2P5/8 w - - 0 1)

Hoffmann, Woldemar

Petersburger Zeitung, 1900

8/8/2Qpp3/6B1/P2k4/1K6/2P5/8

#2

5 + 3

6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qc4#
  • Tries
    • 1.Qe4+?
      • 1...Kc5
        • 2.Be3#
      • 1...Kxe4!
    • 1.c3+?
      • 1...Kd3
        • 2.Qf3#
        • 2.Qc4#
      • 1...Ke5!
  • Keys
    • 1.Qf3!
      • 1...Kc5
        • 2.Be3#
      • 1...Ke5
        • 2.Bf6#
      • 1...d5
        • 2.Qe3#
      • 1...e5
        • 2.Be3#

This anticipates 120125(1910)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR1(E)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT,XQ(E)
    • Try
      • P(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::B(D)
      • P(b);SBLOCK::QAB1(E)
      • P(c);SBLOCK::B(D)
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