MESON Chess Problem Database

Problem Display
PID: 15525 (4Nb2/5K2/6N1/R7/4k3/8/3Q4/8 w - - 0 1)

Bain, R

Chess in Australia, 1985

4Nb2/5K2/6N1/R7/4k3/8/3Q4/8

#2

5 + 2

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Tries
    • 1.Ra3?
      • threat
        • 2.Qd3#
      • 1...Kf5
        • 2.Qf4#
      • 1...Bxa3!
    • 1.Qc3?
      • threat
        • 2.Sf6#
        • 2.Re5#
      • 1...Bd6
        • 2.Sxd6#
        • 2.Sf6#
      • 1...Be7
        • 2.Re5#
      • 1...Bg7
        • 2.Sd6#
      • 1...Bc5!
  • Keys
    • 1.Rf5!
      • threat
        • 2.Rf4#
      • 1...Kxf5
        • 2.Qf4#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Bh6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • B(b);XR(B)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);::R1(B)
        • B(b);N_GUARD::S(E)
      • Refutation
        • B(b);
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • K(a);S_FLIGHT,XR(B)::QAR1(A)
      • B(b);N_GUARD::S(E),XB(b)
      • B(b);N_GUARD::S(E)
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