MESON Chess Problem Database

Problem Display
PID: 198184 (3Q4/4r1pK/2PP2p1/R1N1Pk2/2p3n1/1P2R1PB/1r6/B7 w - - 0 1)

Lindgren, Frithiof

Goteborgs Schacksallskap, 1920

3Q4/4r1pK/2PP2p1/R1N1Pk2/2p3n1/1P2R1PB/1r6/B7

#2

12 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Rf3#
  • Keys
    • 1.e6!
      • threat
        • 2.Sd7#
      • 1...Kg5
        • 2.Se4#
      • 1...Kf6
        • 2.Sd7#
      • 1...Rxb3
        • 2.Sxb3#
      • 1...Rxe6
        • 2.Sxe6#
      • 1...Ra2
        • 2.Sa4#
      • 1...Rd2
        • 2.Sd3#
      • 1...Ra7
        • 2.Sa6#
      • 1...Rb7
        • 2.Sxb7#
      • 1...Rd7
        • 2.Sd3#
        • 2.Sa4#
        • 2.Sa6#
        • 2.Sb7#
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • R(f);SBLOCK,XP(H)::R(C)
  • Actual
    • P(H);
    • Threat
      • R(F)+S(G)
    • Vars
      • K(d);N_SPINS(c),P-FLIGHT,P_SPINR(f)::R(F)+S(G),DCHECK
      • K(d);N_SPINS(c),P-FLIGHT,P_SPINR(a)::S(G)
      • R(a);XP(B)::R(F)+S(G),XR(a)
      • R(f);XP(H)::R(F)+S(G),XR(f)
      • R(a);::R(F)+S(G)
      • R(f);::R(F)+S(G)
      • R(f);::R(F)+S(G),XR(f)
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