MESON Chess Problem Database

Problem Display
PID: 227886 (8/8/8/1p6/3Q4/k7/2K5/8 w - - 0 1)

L'Hermet, Johann Georg Rudolf

Revista Romana de Sah, 1926

8/8/8/1p6/3Q4/k7/2K5/8

#2

2 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ka2
      • 2.Qb2#
      • 2.Qa7#
    • 1...b4
      • 2.Qa1#
      • 2.Qa7#
  • Tries
    • 1.Qc3+?
      • 1...Ka2
        • 2.Qb2#
        • 2.Qa5#
      • 1...Ka4!
    • 1.Qc5+?
      • 1...Ka2
        • 2.Qa7#
      • 1...b4
        • 2.Qa7#
        • 2.Qa5#
      • 1...Ka4!
    • 1.Qb4+?
      • 1...Ka2
        • 2.Qa5#
        • 2.Qb2#
      • 1...Kxb4!
    • 1.Qd6+?
      • 1...Ka2
        • 2.Qa6#
      • 1...b4
        • 2.Qa6#
      • 1...Ka4!
  • Keys
    • 1.Qe4!
      • 1...Ka2
        • 2.Qa8#
      • 1...b4
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR(B)
        • P(b);P_SPINP(b),SBLOCK::QAR(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);P-FLIGHT::QAR(B)
      • P(b);SBLOCK::QAR(B)
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