MESON Chess Problem Database

Problem Display
PID: 47251 (8/1kNBK3/p1p5/2Q5/8/8/8/8 w - - 0 1)

Veselenchuk, Semen Ivanovich

Problem (Zagreb), 1968

8/1kNBK3/p1p5/2Q5/8/8/8/8

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc7
      • 2.Qa7#
    • 1...Kb8
      • 2.Qb6#
  • Tries
    • 1.Kd6?
      • 1...Kb8
        • 2.Qb6#
      • 1...a5!
    • 1.Kd8?
      • 1...Kb8
        • 2.Qb6#
      • 1...a5!
    • 1.Bh3?
      • 1...Kxc7
        • 2.Qa7#
      • 1...Kb8
        • 2.Qb6#
      • 1...a5!
    • 1.Bg4?
      • 1...Kxc7
        • 2.Qa7#
      • 1...Kb8
        • 2.Qb6#
      • 1...a5!
    • 1.Bf5?
      • 1...Kxc7
        • 2.Qa7#
      • 1...Kb8
        • 2.Qb6#
      • 1...a5!
    • 1.Be6?
      • 1...Kxc7
        • 2.Qa7#
      • 1...Kb8
        • 2.Qb6#
      • 1...a5!
    • 1.Qxc6+?
      • 1...Kb8
        • 2.Qb6#
      • 1...Ka7!
  • Keys
    • 1.Sxa6!
      • 1...Kxa6
        • 2.Bc8#
      • 1...Ka8
        • 2.Bxc6#

FEATURES

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