MESON Chess Problem Database

Problem Display
PID: 23887 (8/K2p4/N1k5/2N5/5QBp/8/8/8 w - - 0 1)

Kovacevic, Marjan

Ljubomirovic, Dragan

1st Prize, Mat Plus, 1996

8/K2p4/N1k5/2N5/5QBp/8/8/8

#2

5 + 3

268 Chess Life 2004
5417 FIDE Album (1995-1997) 2004
5929 Mat Plus Special Issue 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Kb5
      • 2.Qa4#
    • 1...Kd5
      • 2.Bf3#
    • 1...d5
      • 2.Bd7#
  • Tries
    • 1.Sb3?
      • 1...Kb5
        • 2.Bxd7#
      • 1...Kd5
        • 2.Sb4#
      • 1...d5
        • 2.Sd4#
      • 1...d6
        • 2.Qc4#
      • 1...h3!
    • 1.Bf3+?
      • 1...Kb5
        • 2.Qa4#
        • 2.Qb4#
      • 1...d5!
    • 1.Bh3?
      • 1...Kb5
        • 2.Qa4#
      • 1...Kd5
        • 2.Bg2#
      • 1...d5
        • 2.Bd7#
      • 1...d6!
    • 1.Qe5?
      • threat
        • 2.Bxd7#
      • 1...d5
        • 2.Bd7#
      • 1...d6
        • 2.Bd7#
      • 1...Kb5!
    • 1.Qc7+?
      • 1...Kb5
        • 2.Be2#
      • 1...Kd5!
    • 1.Qd4?
      • threat
        • 2.Bxd7#
        • 2.Qxd7#
      • 1...Kb5
        • 2.Qa4#
      • 1...d6
        • 2.Bd7#
      • 1...d5!
    • 1.Qe4+?
      • 1...Kb5
        • 2.Qa4#
      • 1...Kd6
        • 2.Sb7#
      • 1...d5!
  • Keys
    • 1.Sb7!
      • threat
        • 2.Qc4#
      • 1...Kb5
        • 2.Bxd7#
      • 1...Kd5
        • 2.Sb4#
      • 1...d5
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(A)
    • K(b);S_FLIGHT::B(B)
    • P(c);SBLOCK::B(B)
  • Tries
    • Try
      • S(C);
      • Vars
        • K(b);S_FLIGHT::B(B),XP(c)
        • K(b);S_FLIGHT::S(D)
        • P(c);SBLOCK::S(C)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • B(B);CHECK
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);S_FLIGHT::B(B)
        • P(c);SBLOCK::B(B)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Threat
        • B(B),XP(c)
      • Vars
        • P(c);::B(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::B(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(c);::B(B)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);P-FLIGHT::S(C)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • S(C);
    • Threat
      • QAR2(A)
    • Vars
      • K(b);S_FLIGHT::B(B),XP(c)
      • K(b);S_FLIGHT::S(D)
      • P(c);SBLOCK::QAB(A)
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