MESON Chess Problem Database

Problem Display
PID: 198114 (8/5K2/B7/3k4/8/6Q1/8/6B1 w - - 0 1)

Wastl, Rudolf

Neuwieder Zeitung, 1920

8/5K2/B7/3k4/8/6Q1/8/6B1

#2

4 + 1

5454 Near Snap 2019
3713 Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Kf6?
      • 1...Ke4
        • 2.Bb7#
      • 1...Kc6!
    • 1.Ke7?
      • 1...Kc6
        • 2.Qd6#
      • 1...Ke4!
    • 1.Qd3+?
      • 1...Ke5
        • 2.Bh2#
      • 1...Kc6!
  • Keys
    • 1.Bh2!
      • 1...Kd4
        • 2.Qe5#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kc5
        • 2.Qd6#
      • 1...Kc6
        • 2.Qd6#

Anticipated by 175785(1898), 183108(1907)

This anticipates 140990(1979), 79151(2002), 198080(2015)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);P-FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAR1(B)
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