MESON Chess Problem Database

Problem Display
PID: 171301 (8/8/8/2K5/1pBP4/8/Pk6/3Q4 w - - 0 1)

Antipov, Viacheslav Pavlovich

L'Italia Scacchistica, 1989

8/8/8/2K5/1pBP4/8/Pk6/3Q4

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ka3
      • 2.Qb3#
    • 1...Kc3
      • 2.Qc1#
  • Tries
    • 1.Kd5?
      • 1...Ka3
        • 2.Qb3#
      • 1...Kc3
        • 2.Qc1#
      • 1...b3!
    • 1.Qc2+?
      • 1...Ka1
        • 2.Qc1#
      • 1...Ka3
        • 2.Qb3#
      • 1...Kxc2!
    • 1.Qb1+?
      • 1...Ka3
        • 2.Qb3#
        • 2.Qxb4#
      • 1...Kc3
        • 2.Qc1#
      • 1...Kxb1!
    • 1.Qd2+?
      • 1...Ka1
        • 2.Qc1#
      • 1...Ka3
        • 2.Qxb4#
      • 1...Kb1!
    • 1.d5?
      • 1...Ka3
        • 2.Qb3#
      • 1...Kc3
        • 2.Qc1#
      • 1...b3!
  • Keys
    • 1.Bb3!
      • 1...Ka3
        • 2.Qc1#
      • 1...Kc3
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(A)
    • K(a);S_FLIGHT::QAR2(A)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
        • K(a);S_FLIGHT::QAB1(A),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • P(b);
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::QAB(A)
      • K(a);S_FLIGHT::QAR1(A)
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