MESON Chess Problem Database

Problem Display
PID: 222551 (4b3/6Q1/3K4/5kp1/8/3N4/4B3/8 w - - 0 1)

Rosenkilde, D Harry

Funkschach, 1926

4b3/6Q1/3K4/5kp1/8/3N4/4B3/8

#2

4 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qe5#
    • 1...Bg6
      • 2.Qe5#
  • Tries
    • 1.Qf6+?
      • 1...Ke4
        • 2.Qe5#
      • 1...Kxf6!
    • 1.Qxg5+?
      • 1...Ke4
        • 2.Qf4#
        • 2.Qe5#
      • 1...Kxg5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kxf4
        • 2.Qe5#
      • 1...gxf4
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::QAR1(D)
    • B(c);SBLOCK::QAR1(D)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK,XP(b)
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
  • Actual
    • S(B);
    • Threat
      • QAR1(D)
    • Vars
      • K(a);S_FLIGHT::QAR1(D)
      • K(a);P-FLIGHT,XS(B)::QAB1(D)
      • P(b);SBLOCK,XS(B)::B(A)
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