MESON Chess Problem Database

Problem Display
PID: 119970 (5Q2/5Bn1/3rPp2/3k4/1p6/2R2K2/2N1P3/8 w - - 0 1)

Lindgren, Frithiof

Stockholm Almane Schachklub, 1917

5Q2/5Bn1/3rPp2/3k4/1p6/2R2K2/2N1P3/8

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Rc5#
      • 2.Qc5#
    • 1...Rb6
      • 2.Rc5#
      • 2.Qc5#
    • 1...Rxe6
      • 2.Rc5#
      • 2.Qc5#
    • 1...Rd7
      • 2.Rc5#
      • 2.Qc5#
    • 1...Rd8
      • 2.Rc5#
      • 2.Qc5#
  • Tries
    • 1.Qa8+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Rc6!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qb5#
      • 1...Ke5
        • 2.Rc5#
      • 1...Rxe6
        • 2.e4#
      • 1...Ra6
        • 2.e4#
      • 1...Rb6
        • 2.e4#
      • 1...Rc6
        • 2.e4#
      • 1...Rd7
        • 2.e4#
      • 1...Rd8
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(G)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • Q(G);
    • Threat
      • QAR2(G)
    • Vars
      • K(b);P-FLIGHT,P_SPINR(c)::R(C)
      • R(c);P_SPINR(c),XP(E)::P(B)
      • R(c);::P(B)
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