MESON Chess Problem Database

Problem Display
PID: 92257 (8/8/8/5K2/8/7k/3Q1B2/8 w - - 0 1)

Dehler, Otto Georg Edgar

Deutsche Schachzeitung, 1923

8/8/8/5K2/8/7k/3Q1B2/8

#2

3 + 1

6490 yacpdb 2009
5454 Near Snap 2013
15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Bg1?
      • threat
        • 2.Qh2#
      • 1...Kh4
        • 2.Qh2#
      • 1...Kg3!
    • 1.Be3?
      • 1...Kh4
        • 2.Qh2#
      • 1...Kg3!
    • 1.Bd4?
      • 1...Kh4
        • 2.Qh2#
      • 1...Kg3!
    • 1.Bc5?
      • 1...Kh4
        • 2.Qh2#
      • 1...Kg3!
    • 1.Bb6?
      • 1...Kh4
        • 2.Qh2#
      • 1...Kg3!
    • 1.Ba7?
      • 1...Kh4
        • 2.Qh2#
      • 1...Kg3!
  • Keys
    • 1.Bh4!
      • 1...Kxh4
        • 2.Qh2#

Anticipated by 24241(1858)

This anticipates 142750(1963), 232347(1975), 232380(1980), 177755(1986)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(a);P-FLIGHT,XB(B)::QAR2(A)
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