MESON Chess Problem Database

Problem Display
PID: 84985 (8/5K2/4B3/4kp2/5N2/8/4N3/2Q5 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Telescacco 92, 1998

8/5K2/4B3/4kp2/5N2/8/4N3/2Q5

#2

5 + 2

6490 yacpdb 2009
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sg2?
      • threat
        • 2.Qf4#
      • 1...Ke4
        • 2.Qe3#
      • 1...f4
        • 2.Qxf4#
      • 1...Kd6!
    • 1.Sd3+?
      • 1...Kd6
        • 2.Qc5#
      • 1...Ke4!
    • 1.Qc3+?
      • 1...Ke4
        • 2.Bd5#
      • 1...Kd6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qf4#
      • 1...Ke4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qc7#
      • 1...f4
        • 2.Qxf4#

Anticipated by 179755(1976)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • P(b);::QAB1(A),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::QAB1(A)
      • P(b);::QAB1(A),XP(b)
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