MESON Chess Problem Database

Problem Display
PID: 176024 (8/8/2p3Q1/3k4/4N3/8/3KB3/8 w - - 0 1)

Bethge, Friedrich

Schach-Echo, 1942

8/8/2p3Q1/3k4/4N3/8/3KB3/8

#2

4 + 2

6490 yacpdb 2018
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Kd3?
      • threat
        • 2.Qf5#
        • 2.Qd6#
      • 1...c5
        • 2.Qd6#
      • 1...Ke5!
    • 1.Ke3?
      • threat
        • 2.Qf5#
        • 2.Qd6#
      • 1...c5
        • 2.Qd6#
      • 1...Ke5!
    • 1.Bd3?
      • threat
        • 2.Qd6#
      • 1...Kd4
        • 2.Qd6#
      • 1...Ke5!
  • Keys
    • 1.Qf6!
      • 1...Kxe4
        • 2.Bf3#
      • 1...c5
        • 2.Sc3#

Anticipated by 190010(1913)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(C)::B(B)
      • P(b);SBLOCK::S(C)
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