MESON Chess Problem Database

Problem Display
PID: 23201 (8/3K4/8/5N2/4Q2p/7k/5b1r/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/3K4/8/5N2/4Q2p/7k/5b1r/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qf3#
    • 1...Be3
      • 2.Qf3#
    • 1...Bd4
      • 2.Qf3#
    • 1...Bc5
      • 2.Qf3#
    • 1...Bb6
      • 2.Qf3#
    • 1...Ba7
      • 2.Qf3#
  • Keys
    • 1.Se3!
      • threat
        • 2.Qg4#
      • 1...Kg3
        • 2.Qg4#
      • 1...Bxe3
        • 2.Qf3#
      • 1...Rh1
        • 2.Qg2#
      • 1...Rg2
        • 2.Qxg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(a);N_GUARD::QAR2(A)
  • Actual
    • S(B);
    • Threat
      • QAB1(A)
    • Vars
      • K(c);P-FLIGHT::QAR1(A)
      • B(a);N_GUARD,XS(B)::QAR2(A)
      • R(b);N_GUARD::QAB1(A)
      • R(b);N_GUARD::QAB1(A),XR(b)
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