MESON Chess Problem Database

Problem Display
PID: 71609 (2B5/8/8/1R5K/1Q6/8/4kP2/4B3 w - - 0 1)

Sorochan, Vladimir Mikhailovich

5th Prize, Problem Privushka, 1990

2B5/8/8/1R5K/1Q6/8/4kP2/4B3

#2

6 + 1

56 The Problemist 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kd1
      • 2.Qd2#
    • 1...Kf3
      • 2.Qg4#
  • Tries
    • 1.Bh3?
      • 1...Kd1
        • 2.Qd2#
      • 1...Kf3
        • 2.Qg4#
      • 1...Kd3!
    • 1.Bf5?
      • 1...Kd1
        • 2.Qd2#
      • 1...Kf3
        • 2.Qe4#
        • 2.Qg4#
      • 1...Kf1!
    • 1.Be6?
      • 1...Kd1
        • 2.Qd2#
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qg4#
      • 1...Kf1!
    • 1.Bb7?
      • 1...Kd1
        • 2.Qd2#
      • 1...Kd3
        • 2.Qe4#
      • 1...Kf1!
    • 1.Rc5?
      • 1...Kd1
        • 2.Bg4#
        • 2.Qd2#
      • 1...Kd3
        • 2.Ba6#
        • 2.Qc4#
      • 1...Kf3
        • 2.Qg4#
      • 1...Kf1!
    • 1.Rd5?
      • 1...Kf3
        • 2.Qg4#
      • 1...Kf1!
    • 1.Re5+?
      • 1...Kd1
        • 2.Qd2#
        • 2.Qb1#
      • 1...Kd3
        • 2.Bf5#
        • 2.Qc3#
        • 2.Qe4#
      • 1...Kf3
        • 2.Bb7#
        • 2.Qe4#
        • 2.Qg4#
      • 1...Kf1!
    • 1.Rg5?
      • 1...Kd1
        • 2.Qd2#
      • 1...Kf1
        • 2.Ba6#
      • 1...Kf3
        • 2.Qg4#
      • 1...Kd3!
    • 1.Qd2+?
      • 1...Kf3
        • 2.Bb7#
      • 1...Kf1!
    • 1.Qc3?
      • 1...Kd1
        • 2.Bg4#
        • 2.Qd2#
      • 1...Kf1!
    • 1.Qc4+?
      • 1...Kd1
        • 2.Rb1#
      • 1...Kf3
        • 2.Bb7#
        • 2.Qg4#
      • 1...Kxe1!
    • 1.Qe4+?
      • 1...Kd1
        • 2.Rb1#
      • 1...Kf1!
  • Keys
    • 1.Ba6!
      • 1...Kd1
        • 2.Qd2#
      • 1...Kf1
        • 2.Rg5#
      • 1...Kd3
        • 2.Rc5#
      • 1...Kf3
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(C)
    • K(a);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::B(F)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::R(D)
      • Refutation
        • K(a);P-FLIGHT,XB(A)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(F);
    • Vars
      • K(a);S_FLIGHT::QAR1(C)
      • K(a);S_FLIGHT::B(F)+R(D)
      • K(a);S_FLIGHT::QAB1(C)
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