MESON Chess Problem Database

Problem Display
PID: 249595 (8/6N1/8/1p6/1K1pk2P/8/3B3P/Q5N1 w - - 0 1)

L'Hermet, Johann Georg Rudolf

Deutsche Schachzeitung, 1894

8/6N1/8/1p6/1K1pk2P/8/3B3P/Q5N1

#2

7 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kc5?
      • threat
        • 2.Qxd4#
      • 1...Ke5
        • 2.Qxd4#
      • 1...d3
        • 2.Qd4#
        • 2.Qe1#
      • 1...Kd3!
    • 1.Qe1+?
      • 1...Kd5
        • 2.Qe6#
      • 1...Kd3!
  • Keys
    • 1.Bf4!
      • 1...Kd3
        • 2.Qb1#
      • 1...Kxf4
        • 2.Qxd4#
      • 1...Kd5
        • 2.Qa8#
      • 1...d3
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Threat
        • QAR1(A),XP(a)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(a)::QAB1(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • K(b);S_FLIGHT::QAB(A)
      • K(b);P-FLIGHT,XB(C)::QAR2(A),XP(a)
      • P(a);OGATE,SBLOCK::QAR1(A)
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