MESON Chess Problem Database

Problem Display
PID: 29029 (8/1K6/1B2p3/7Q/2kp4/8/8/N7 w - - 0 1)

Rasmussen, Knud AK

Toronto Star, 1955

8/1K6/1B2p3/7Q/2kp4/8/8/N7

#2

4 + 3

3248 Miniatures canadiennes 2000

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qc5#
  • Tries
    • 1.Qf3?
      • threat
        • 2.Qb3#
      • 1...Kb4
        • 2.Qb3#
      • 1...Kb5
        • 2.Qb3#
      • 1...d3!
    • 1.Qb5+?
      • 1...Kc3
        • 2.Ba5#
      • 1...Kxb5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qb3#
      • 1...Kc3
        • 2.Qxd4#
      • 1...Kb4
        • 2.Qb3#
      • 1...Kb5
        • 2.Qb3#
      • 1...Kd5
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(b);SBLOCK::QAR1(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(a);P-FLIGHT::QAB1(B),XP(b)
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAR2(B)
      • K(a);P_SPINP(b),S_FLIGHT::QAR1(B),XP(b)
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