MESON Chess Problem Database

Problem Display
PID: 222914 (8/1K6/8/8/k7/Pp5Q/1p6/8 w - - 0 1)

Caplin, Aleksandr Borisovich

Sachova skladba, 2004

8/1K6/8/8/k7/Pp5Q/1p6/8

#2

3 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qa6#
      • 1...Ka5
        • 2.Qa6#
      • 1...Kxa3!
    • 1.Qg4+?
      • 1...Ka5
        • 2.Qb4#
      • 1...Kb5
        • 2.Qb4#
      • 1...Kxa3!
    • 1.Qxb3+?
      • 1...Ka5
        • 2.Qb4#
      • 1...Kxb3!
    • 1.Qd3?
      • threat
        • 2.Qa6#
      • 1...Ka5
        • 2.Qa6#
      • 1...Kxa3!
    • 1.Qh4+?
      • 1...Ka5
        • 2.Qb4#
      • 1...Kb5
        • 2.Qb4#
      • 1...Kxa3!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qb4#
      • 1...Kxa3
        • 2.Qa5#
      • 1...Kb5
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT,XP(A)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(B)
        • K(c);S_FLIGHT::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT,XP(A)
    • Try
      • Q(B);CHECK,XP(b)
      • Vars
        • K(c);P-FLIGHT::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(b),XP(A)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(B)
        • K(c);S_FLIGHT::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT,XP(A)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(c);P-FLIGHT,P_SPINP(b),XP(A)::QAR2(B)
      • K(c);S_FLIGHT::QAR1(B)
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