MESON Chess Problem Database

Problem Display
PID: 23173 (8/6b1/8/7K/2P1k3/8/1n1R1Q2/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/6b1/8/7K/2P1k3/8/1n1R1Q2/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Re2#
  • Tries
    • 1.Qe3+?
      • 1...Kf5
        • 2.Rf2#
      • 1...Kxe3!
  • Keys
    • 1.Kg4!
      • threat
        • 2.Qe1#
        • 2.Qe2#
        • 2.Qf4#
      • 1...Ke5
        • 2.Qf5#
      • 1...Sxc4
        • 2.Qf4#
      • 1...Bd4
        • 2.Qxd4#
        • 2.Qf4#
      • 1...Be5
        • 2.Qe1#
        • 2.Qe2#
        • 2.Qf3#
      • 1...Bh6
        • 2.Qd4#
      • 1...Sd1
        • 2.Qf4#
      • 1...Sd3
        • 2.Re2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::R(A)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::R(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(B)
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • DUALS(3)
    • Vars
      • K(b);P-FLIGHT::QAR1(B)
      • S(a);XP(C)::QAR1(B)
      • B(c);N_GUARD::QAR1(B)
      • S(a);::QAR1(B)
      • S(a);SBLOCK::R(A)
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