MESON Chess Problem Database

Problem Display
PID: 249596 (5Q2/8/5p1K/2P1k3/8/4N3/1P6/4R1B1 w - - 0 1)

L'Hermet, Johann Georg Rudolf

Deutsche Schachzeitung, 1894

5Q2/8/5p1K/2P1k3/8/4N3/1P6/4R1B1

#2

7 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qe8#
  • Tries
    • 1.Sg2+?
      • 1...Kf5
        • 2.Qc8#
      • 1...Kd5!
    • 1.Sd5+?
      • 1...Kf5
        • 2.Qc8#
      • 1...Kxd5!
    • 1.Qe7+?
      • 1...Kd4
        • 2.Rd1#
      • 1...Kf4!
  • Keys
    • 1.Qa8!
      • 1...Kd4
        • 2.Qd5#
      • 1...Kf4
        • 2.Bh2#
      • 1...Ke6
        • 2.Qe8#
      • 1...f5
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(G)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAB(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAB(G)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);S_FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(a);S_FLIGHT::QAR1(G)
      • K(a);S_FLIGHT::B(B)
      • K(a);P-FLIGHT::QAR2(G)
      • P(b);SBLOCK::R(A)+S(D)
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