MESON Chess Problem Database

Problem Display
PID: 87184 (8/7k/8/5KB1/8/8/8/Q7 w - - 0 1)

Radchenko, Sergei Vladimirovich

Apprenti Sorcier, 1992

8/7k/8/5KB1/8/8/8/Q7

#2

3 + 1

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bh4?
      • 1...Kh6
        • 2.Qh8#
      • 1...Kg8!
    • 1.Bf6?
      • 1...Kh6
        • 2.Qh1#
      • 1...Kg8!
    • 1.Be7?
      • 1...Kh6
        • 2.Qh8#
      • 1...Kg8!
    • 1.Bd8?
      • 1...Kh6
        • 2.Qh8#
      • 1...Kg8!
  • Keys
    • 1.Bh6!
      • threat
        • 2.Qg7#
      • 1...Kxh6
        • 2.Qh8#
      • 1...Kg8
        • 2.Qg7#

Anticipated by 9609(1906), 160087(1987)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(C);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);P-FLIGHT,XB(C)::QAR2(A)
      • K(a);S_FLIGHT::QAR1(A)
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