MESON Chess Problem Database

Problem Display
PID: 196385 (8/1Bp5/4p3/Q7/2pk4/8/2K5/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Sachova skladba, 2011

8/1Bp5/4p3/Q7/2pk4/8/2K5/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qd2#
    • 1...c3
      • 2.Qxc3#
    • 1...c5
      • 2.Qc3#
  • Tries
    • 1.Kd2?
      • 1...c3+
        • 2.Qxc3#
      • 1...c5
        • 2.Qc3#
      • 1...e5
        • 2.Qd5#
      • 1...c6!
    • 1.Qxc7?
      • 1...e5
        • 2.Qb6#
      • 1...c3
        • 2.Qxc3#
      • 1...Ke3!
    • 1.Qd5+?
      • 1...Ke3
        • 2.Qd2#
      • 1...exd5!
  • Keys
    • 1.Bc6!
      • 1...Ke3
        • 2.Qd2#
      • 1...c3
        • 2.Qxc3#
      • 1...e5
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT::QAB1(B)
    • P(a);::QAB1(B),XP(a)
    • P(d);SBLOCK::QAB1(B)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(a);CHECK::QAB1(B),XP(a)
        • P(d);SBLOCK::QAB1(B)
        • P(c);N_GUARD::QAR1(B)
      • Refutation
        • P(d);
    • Try
      • Q(B);XP(d)
      • Vars
        • P(c);SBLOCK::QAB(B)
        • P(a);OGATE::QAB1(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • B(C);
    • Vars
      • K(b);S_FLIGHT::QAB1(B)
      • P(a);::QAB1(B),XP(a)
      • P(c);SBLOCK::QAB(B)
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