MESON Chess Problem Database

Problem Display
PID: 158044 (5B2/1nr1nN2/2R5/3k2K1/P1pNR3/8/4P3/1Q6 w - - 0 1)

Andersson, Sven Tore

Themes-64, 1962

5B2/1nr1nN2/2R5/3k2K1/P1pNR3/8/4P3/1Q6

#2

9 + 5

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Rd6#
  • Tries
    • 1.Rd6+?
      • 1...Kc5
        • 2.Se6#
        • 2.Qb5#
        • 2.Qb6#
      • 1...Sxd6!
    • 1.Qb5+?
      • 1...Kxe4
        • 2.Qe5#
      • 1...Sc5!
  • Keys
    • 1.Sc2!
      • threat
        • 2.Sb4#
      • 1...Kxe4
        • 2.Qh1#
      • 1...Kxc6
        • 2.Qb5#
      • 1...Rxc6
        • 2.Re5#
      • 1...Sxc6
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(c);N_GUARD,SBLOCK::R1(G)
  • Tries
    • Try
      • R(G);CHECK
      • Refutation
        • S(c);XR(G)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XR(E)::QAR1(A)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(E)::QAB(A)
      • K(b);S_FLIGHT,XR(G)::QAB1(A)
      • R(d);SBLOCK,XR(G)::R1(E)
      • S(e);SBLOCK,XR(G)::S(D)
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