MESON Chess Problem Database

Problem Display
PID: 107679 (8/4N3/8/2P5/1n1k3B/1Q3K2/8/8 w - - 0 1)

Balo, Tibor

Bucharest Cup, 1989

8/4N3/8/2P5/1n1k3B/1Q3K2/8/8

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe3#
  • Tries
    • 1.Qc4+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kxc4!
    • 1.Qxb4+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kd3!
  • Keys
    • 1.Be1!
      • threat
        • 2.Qc3#
      • 1...Kxc5
        • 2.Qxb4#
      • 1...Ke5
        • 2.Bc3#
      • 1...Sa2
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR2(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK,XS(a)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);S_FLIGHT,XP(D)::QAB1(A),XS(a)
      • K(b);S_FLIGHT::B(C)
      • S(a);N_GUARD::QAR1(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
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