MESON Chess Problem Database

Problem Display
PID: 231141 (8/8/3R4/6p1/4kbQ1/7K/6N1/8 w - - 0 1)

Karsch, Wilhelm

Frankisches Volksblatt, 1927

8/8/3R4/6p1/4kbQ1/7K/6N1/8

#2

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe6#
  • Tries
    • 1.Se3?
      • 1...Ke5
        • 2.Qe6#
      • 1...Kxe3!
    • 1.Sh4?
      • 1...Ke3
        • 2.Qf3#
      • 1...Ke5
        • 2.Qe6#
      • 1...gxh4!
    • 1.Qe2+?
      • 1...Kf5
        • 2.Qe6#
      • 1...Be3!
  • Keys
    • 1.Se1!
      • 1...Ke3
        • 2.Qf3#
      • 1...Ke5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINB(b),P-FLIGHT::QAR1(C)
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,XS(A)
    • Try
      • S(A);
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT::QAR1(C)
      • Refutation
        • P(c);XS(A)
    • Try
      • Q(C);CHECK,N_PINB(b)
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(C)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • S(A);
    • Vars
      • K(a);N_SPINB(b),P-FLIGHT::QAR1(C)
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