MESON Chess Problem Database

Problem Display
PID: 141143 (k4B2/8/P5R1/5n2/1K5p/6pp/7b/6Q1 w - - 0 1)

Velimirovic, Milan

Mat, 1979

k4B2/8/P5R1/5n2/1K5p/6pp/7b/6Q1

#2

5 + 6

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Qh1+?
      • 1...Ka7
        • 2.Qb7#
      • 1...Kb8
        • 2.Qb7#
      • 1...g2!
    • 1.Qg2+?
      • 1...Ka7
        • 2.Qb7#
      • 1...Kb8
        • 2.Qb7#
      • 1...hxg2!
  • Keys
    • 1.Rg8!
      • threat
        • 2.Bc5#
        • 2.Bd6#
        • 2.Bh6#
        • 2.Be7#
        • 2.Bg7#
      • 1...Kb8
        • 2.Bd6#
      • 1...Bxg1
        • 2.Bc5#
      • 1...Se3
        • 2.Bc5#
      • 1...Sd4
        • 2.Bc5#
      • 1...Sd6
        • 2.Bxd6#
      • 1...Sh6
        • 2.Bxh6#
      • 1...Se7
        • 2.Bxe7#
      • 1...Sg7
        • 2.Bxg7#
      • 1...g2
        • 2.Bd6#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(f);P-FLIGHT::QAR1(A)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(A);CHECK
      • Vars
        • K(f);P-FLIGHT::QAR1(A)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • R(D);
    • Threat
      • DUALS(5)
    • Vars
      • K(f);P-FLIGHT::R(D)+B(E),DCHECK
      • B(a);XQ(A)::R(D)+B(E)
      • S(e);::R(D)+B(E)
      • S(e);::R(D)+B(E),XS(e)
      • P(b);::R(D)+B(E)
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