MESON Chess Problem Database

Problem Display
PID: 39350 (5b2/8/2K5/1Q3p2/8/7k/8/6R1 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

5b2/8/2K5/1Q3p2/8/7k/8/6R1

#2

3 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qh5#
  • Tries
    • 1.Qf1+?
      • 1...Kh2
        • 2.Qg2#
      • 1...Kh4!
    • 1.Qe2?
      • threat
        • 2.Qh5#
      • 1...Kh4
        • 2.Qh2#
      • 1...Be7!
    • 1.Qd3+?
      • 1...Kh2
        • 2.Qg3#
      • 1...Kh4!
    • 1.Qb3+?
      • 1...Kh2
        • 2.Qg3#
      • 1...Kh4!
    • 1.Qd5?
      • threat
        • 2.Qh1#
      • 1...Kh2
        • 2.Qh1#
        • 2.Qg2#
      • 1...Kh4
        • 2.Qh1#
      • 1...Bd6!
    • 1.Qxf5+?
      • 1...Kh4
        • 2.Qg4#
      • 1...Kh2!
    • 1.Qb8?
      • threat
        • 2.Qg3#
      • 1...Kh4
        • 2.Qh2#
      • 1...Bd6
        • 2.Qh8#
      • 1...f4!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qg3#
      • 1...Kh4
        • 2.Qh2#
      • 1...f4
        • 2.Qh5#
      • 1...Bd6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::QAR2(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • B(c);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • K(a);P-FLIGHT::QAR(B)
      • Refutation
        • B(c);
    • Try
      • Q(B);CHECK,XP(b)
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
        • B(c);OGATE::QAR(B)
      • Refutation
        • P(b);
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(a);P-FLIGHT::QAR2(B)
      • P(b);OGATE::QAR2(B)
      • B(c);N_GUARD::QAR(B)
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