MESON Chess Problem Database

Problem Display
PID: 105471 (1N4n1/2k5/B7/2B5/8/3K4/5Q2/8 w - - 0 1)

Kolpakov, Viktor Sergeevich

Pypa, Volodimir Iosifovich

Kertsensky Rabotsin, 1998

1N4n1/2k5/B7/2B5/8/3K4/5Q2/8

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bb6+?
      • 1...Kxb8
        • 2.Qf8#
      • 1...Kd6!
    • 1.Bd6+?
      • 1...Kd8
        • 2.Qf8#
      • 1...Kxd6!
    • 1.Qf5?
      • threat
        • 2.Qc8#
      • 1...Kxb8
        • 2.Qc8#
      • 1...Kd8
        • 2.Qd7#
        • 2.Qc8#
      • 1...Se7!
    • 1.Qf6?
      • threat
        • 2.Qb6#
        • 2.Qd6#
      • 1...Kxb8
        • 2.Qd8#
      • 1...Sxf6!
    • 1.Qf7+?
      • 1...Kxb8
        • 2.Qa7#
        • 2.Qb7#
      • 1...Kd8
        • 2.Sc6#
        • 2.Bb6#
        • 2.Qd7#
      • 1...Se7!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qd6#
      • 1...Kxb8
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(E)::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT,XB(C)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);S_FLIGHT,XS(E)::QAR1(A)
      • Refutation
        • S(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);S_FLIGHT,XS(E)::QAR2(A)
      • Refutation
        • S(b);XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);S_FLIGHT,XS(E)::QAR2(A)
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