MESON Chess Problem Database

Problem Display
PID: 214968 (1q6/1p4R1/4p2b/5rR1/QB4Nk/5PNp/K6P/8 w - - 0 1)

Visserman, Eeltje

Suomen Shakki, 1973

1q6/1p4R1/4p2b/5rR1/QB4Nk/5PNp/K6P/8

#2

9 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf3
      • 2.Rh5#
    • 1...Rf4
      • 2.Rh5#
    • 1...Rf6
      • 2.Rh5#
    • 1...Rf7
      • 2.Rh5#
    • 1...Rf8
      • 2.Rh5#
    • 1...e5
      • 2.Sxf5#
  • Tries
    • 1.Be7?
      • threat
        • 2.Rh5#
      • 1...Rxg5
        • 2.Se5#
      • 1...Bxg5
        • 2.Rh7#
      • 1...Qxg3!
  • Keys
    • 1.Se5!
      • threat
        • 2.Rg4#
      • 1...Rxg5
        • 2.Be7#
      • 1...Bxg5
        • 2.Sg6#
      • 1...Rf4
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD,XP(C)::R1(H)
    • R(c);N_GUARD::R1(H)
    • P(d);N_GUARD::S(D),XR(c)
  • Tries
    • Try
      • B(F);
      • Threat
        • B(F)+R(H),DCHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c),XR(H)::QAR(E)+S(G)
        • B(e);OGATEB,P_SPINB(e),XR(H)::R(I)
      • Refutation
        • Q(g);XS(D)
  • Actual
    • S(G);
    • Threat
      • R1(H)
    • Vars
      • R(c);N_GUARD,XR(H)::QAR(E)+B(F)
      • B(e);SBLOCK,XR(H)::S(G)
      • R(c);N_GUARD::R1(H)
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