MESON Chess Problem Database

Problem Display
PID: 62765 (5n1B/1K1Q1pr1/R2NP1p1/Rp1Nk3/5p2/2P2Ppq/5PP1/8 w - - 0 1)

Servais, Albert

8th Place, Match: France - Israel, 1953-1954

5n1B/1K1Q1pr1/R2NP1p1/Rp1Nk3/5p2/2P2Ppq/5PP1/8

#2

12 + 9

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1956

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Rxb5#
    • 1...f5
      • 2.Sf7#
  • Tries
    • 1.Bxg7+?
      • 1...Kxd5
        • 2.Rxb5#
      • 1...f6!
  • Keys
    • 1.Qxb5!
      • threat
        • 2.Qe2#
      • 1...fxe6+
        • 2.Bxg7#
      • 1...f5+
        • 2.Sf7#
      • 1...f6+
        • 2.Sc7#
      • 1...Kxe6
        • 2.Qe8#
      • 1...Qf5
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(e);N_SPINR(h),OGATEB,P-FLIGHT,P_SPINP(d),XS(F)::R(E),XP(d)
    • P(g);P_PINQ(K),SBLOCK::S(H)
  • Tries
    • Try
      • B(L);CHECK,XR(h)
      • Vars
        • K(e);P-FLIGHT,P_SPINP(d),XS(F)::R(E),XP(d)
      • Refutation
        • P(g);P_SPINP(g)
  • Actual
    • Q(K);XP(d)
    • Threat
      • QAR(K)
    • Vars
      • P(g);CHECK,N_GUARD,SBLOCK,XP(I)::B(L),XR(h)
      • P(g);CHECK,SBLOCK::S(H)
      • P(g);CHECK,N_SPINR(h),SBLOCK::QAR(K)+S(F)
      • K(e);N_SPINR(h),OGATEB,P-FLIGHT,XP(I)::QAR2(K)
      • Q(b);SBLOCK::S(H)
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