MESON Chess Problem Database

Problem Display
PID: 39782 (8/8/8/1Q6/2n1k3/2p3R1/4K2n/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

8/8/8/1Q6/2n1k3/2p3R1/4K2n/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Rg4#
    • 1...Sf3
      • 2.Rg4#
    • 1...Sg4
      • 2.Rxg4#
  • Tries
    • 1.Qf5+?
      • 1...Kd4
        • 2.Rd3#
      • 1...Kxf5!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Qxc4#
      • 1...Kd4
        • 2.Qd5#
      • 1...Kf4
        • 2.Qf5#
      • 1...Sf3
        • 2.Rg4#
      • 1...Sb2
        • 2.Qe5#
      • 1...Sd2
        • 2.Qe5#
      • 1...Sa3
        • 2.Qe5#
      • 1...Se3
        • 2.Qe5#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sb6
        • 2.Qe5#
      • 1...Sd6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::R(B)
    • S(a);N_GUARD::R(B),XS(a)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);P-FLIGHT::R1(B)
      • Refutation
        • K(d);S_FLIGHT,XQ(C)
  • Actual
    • R(B);
    • Threat
      • QAR2(C),XS(c)
    • Vars
      • K(d);P-FLIGHT::QAR1(C)
      • S(a);N_GUARD::R(B)
      • S(c);N_GUARD::QAR1(C)
      • S(c);N_GUARD::QAR1(C),XS(c)
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Developed and maintained by Brian Stephenson.
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