MESON Chess Problem Database

Problem Display
PID: 24128 (7r/8/4Q3/4N1pk/6p1/8/4K3/8 w - - 0 1)

Lincoln, Robert A

Magadanskaya Pravda, 1998

7r/8/4Q3/4N1pk/6p1/8/4K3/8

#2

3 + 4

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Kh4
      • 2.Qxg4#
    • 1...Rh6
      • 2.Qxg4#
    • 1...g3
      • 2.Qh3#
  • Tries
    • 1.Qd7?
      • 1...Kh4
        • 2.Qxg4#
      • 1...Rh7
        • 2.Qxh7#
      • 1...Rh6
        • 2.Qxg4#
      • 1...Ra8
        • 2.Qh7#
      • 1...Rb8
        • 2.Qh7#
      • 1...Rc8
        • 2.Qh7#
      • 1...Rd8
        • 2.Qh7#
      • 1...Re8
        • 2.Qh7#
      • 1...Rf8
        • 2.Qh7#
      • 1...Rg8
        • 2.Qh7#
      • 1...g3
        • 2.Qh3#
      • 1...Kh6!
    • 1.Qf7+?
      • 1...Kh6
        • 2.Sxg4#
        • 2.Qg6#
      • 1...Kh4!
  • Keys
    • 1.Qf5!
      • 1...Kh4
        • 2.Qxg4#
      • 1...Kh6
        • 2.Qg6#
      • 1...Rh7
        • 2.Qxh7#
      • 1...Rh6
        • 2.Qxg4#
      • 1...Ra8
        • 2.Qh7#
      • 1...Rb8
        • 2.Qh7#
      • 1...Rc8
        • 2.Qh7#
      • 1...Rd8
        • 2.Qh7#
      • 1...Re8
        • 2.Qh7#
      • 1...Rf8
        • 2.Qh7#
      • 1...Rg8
        • 2.Qh7#
      • 1...g3
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT::QAR1(C),XP(a)
    • R(d);SBLOCK::QAB1(C),XP(a)
    • P(a);OGATE::QAR2(C)
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(c);P-FLIGHT::QAR1(C),XP(a)
        • R(d);N_GUARD::QAR2(C),XR(d)
        • R(d);SBLOCK::QAB1(C),XP(a)
        • R(d);N_GUARD::QAR2(C)
        • R(d);N_GUARD,P_PINS(B)::QAR2(C)
        • P(a);OGATE::QAR2(C)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(C);P_PINP(b)
    • Vars
      • K(c);N_SPINP(b),P-FLIGHT::QAR1(C),XP(a)
      • K(c);N_SPINP(b),P-FLIGHT::QAR1(C)
      • R(d);N_GUARD::QAR2(C),XR(d)
      • R(d);SBLOCK::QAB1(C),XP(a)
      • R(d);N_GUARD::QAR2(C)
      • R(d);N_GUARD,P_PINS(B)::QAR2(C)
      • P(a);OGATE::QAR2(C)
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