MESON Chess Problem Database

Problem Display
PID: 134391 (8/8/BB2pQ2/8/3Nk3/8/8/K7 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Problem Observer, 2008

8/8/BB2pQ2/8/3Nk3/8/8/K7

#2

5 + 2

136 Problem Observer 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qxe6#
    • 1...e5
      • 2.Qf3#
  • Tries
    • 1.Kb1?
      • 1...Kd5
        • 2.Qxe6#
      • 1...e5
        • 2.Qf3#
      • 1...Ke3!
    • 1.Ka2?
      • 1...Kd5
        • 2.Qxe6#
      • 1...e5
        • 2.Qf3#
      • 1...Ke3!
    • 1.Kb2?
      • 1...Kd5
        • 2.Qxe6#
      • 1...e5
        • 2.Qf3#
      • 1...Ke3!
    • 1.Bf1?
      • 1...Kd5
        • 2.Qxe6#
      • 1...e5
        • 2.Qf3#
      • 1...Ke3!
    • 1.Be2?
      • 1...Kd5
        • 2.Qxe6#
      • 1...e5
        • 2.Qf3#
      • 1...Ke3!
    • 1.Bc4?
      • 1...e5
        • 2.Qf3#
      • 1...Ke3!
    • 1.Bb5?
      • 1...Kd5
        • 2.Qxe6#
      • 1...e5
        • 2.Qf3#
      • 1...Ke3!
    • 1.Ba7?
      • 1...Kd5
        • 2.Qxe6#
      • 1...e5
        • 2.Qf3#
      • 1...Ke3!
    • 1.Qf5+?
      • 1...Ke3
        • 2.Sb3#
        • 2.Sf3#
      • 1...exf5!
  • Keys
    • 1.Bc7!
      • threat
        • 2.Qe5#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kd5
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(E),XP(b)
    • P(b);SBLOCK::QAB1(E)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(E),XP(b)
        • P(b);SBLOCK::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(E),XP(b)
        • P(b);SBLOCK::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(E),XP(b)
        • P(b);SBLOCK::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(E),XP(b)
        • P(b);SBLOCK::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(E),XP(b)
        • P(b);SBLOCK::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • P(b);SBLOCK::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(E),XP(b)
        • P(b);SBLOCK::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(E),XP(b)
        • P(b);SBLOCK::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • P(b);XQ(E)
  • Actual
    • B(D);
    • Threat
      • QAR1(E)
    • Vars
      • K(a);P-FLIGHT::QAB1(E)
      • K(a);S_FLIGHT::QAR1(E)
      • P(b);::QAR1(E),XP(b)
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