MESON Chess Problem Database

Problem Display
PID: 151975 (8/8/3KN3/2N2b2/2k2n2/2P2n2/3Qp3/8 w - - 0 1)

Barrett, Samuel R

Good Companions (January), 1915

8/8/3KN3/2N2b2/2k2n2/2P2n2/3Qp3/8

#2

5 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qa2+?
      • 1...Kb5
        • 2.Qa6#
      • 1...Kxc3!
    • 1.Qd4+?
      • 1...Kb5
        • 2.Qb4#
      • 1...Sxd4!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Qb3#
        • 2.Qb4#
      • 1...Bc2
        • 2.Qb4#
      • 1...Sd2
        • 2.Qb4#
      • 1...Sd4
        • 2.Qb4#
      • 1...Sd3
        • 2.Qb3#
      • 1...Sd5
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT,XP(B)
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • S(b);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • B(e);::QAR1(A)
      • S(b);::QAR1(A)
      • S(d);::QAB1(A)
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