MESON Chess Problem Database

Problem Display
PID: 77499 (8/5b2/8/8/B1n3Q1/2k5/4K3/1R6 w - - 0 1)

Cyrulik, Stepan Pavlovich

Problemist Pribuzhya, 1992

8/5b2/8/8/B1n3Q1/2k5/4K3/1R6

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Rc1#
    • 1...Sd2
      • 2.Qb4#
    • 1...Sa3
      • 2.Qb4#
    • 1...Se3
      • 2.Qb4#
    • 1...Sa5
      • 2.Qb4#
    • 1...Se5
      • 2.Qb4#
    • 1...Sb6
      • 2.Qb4#
    • 1...Sd6
      • 2.Qb4#
  • Tries
    • 1.Qe4?
      • threat
        • 2.Rb3#
        • 2.Qd3#
      • 1...Bg6
        • 2.Rb3#
      • 1...Sb2
        • 2.Rc1#
      • 1...Sd2
        • 2.Qd3#
        • 2.Qb4#
      • 1...Sa3
        • 2.Qd3#
        • 2.Qb4#
      • 1...Se3
        • 2.Qd3#
        • 2.Qb4#
      • 1...Sa5
        • 2.Qd3#
        • 2.Qb4#
      • 1...Se5
        • 2.Qb4#
      • 1...Sb6
        • 2.Qd3#
        • 2.Qb4#
      • 1...Sd6
        • 2.Qd3#
        • 2.Qb4#
      • 1...Bh5+!
  • Keys
    • 1.Bd1!
      • threat
        • 2.Rb3#
      • 1...Sb2
        • 2.Rc1#
      • 1...Sd2
        • 2.Qb4#
      • 1...Sa3
        • 2.Qb4#
      • 1...Se3
        • 2.Qb4#
      • 1...Sa5
        • 2.Qb4#
      • 1...Se5
        • 2.Qb4#
      • 1...Sb6
        • 2.Qb4#
      • 1...Sd6
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::R(A)
    • S(b);OGATE::QAB1(D)
  • Tries
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::R1(A)
        • S(b);SBLOCK::R(A)
        • S(b);OGATE::QAB1(D)
      • Refutation
        • B(c);CHECK
  • Actual
    • B(C);
    • Threat
      • R1(A)
    • Vars
      • S(b);SBLOCK::R(A)
      • S(b);OGATE::QAB1(D)
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