MESON Chess Problem Database

Problem Display
PID: 78077 (6bq/3PPknp/2N4P/6P1/3R3N/5p2/p3nP2/K3R3 w - - 0 1)

Lazard, Frederic

1/2 Prize, Magyar Sakkvilag, 1939

6bq/3PPknp/2N4P/6P1/3R3N/5p2/p3nP2/K3R3

#2

10 + 8

274 diagrammes 1974

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.d8S#
    • 1...Sc1
      • 2.Sd8#
    • 1...Sg1
      • 2.Sd8#
    • 1...Sc3
      • 2.Sd8#
    • 1...Sg3
      • 2.Sd8#
    • 1...Sxd4
      • 2.Sd8#
    • 1...Sf4
      • 2.Sd8#
    • 1...Sf5
      • 2.e8Q#
    • 1...Sh5
      • 2.e8Q#
    • 1...Se6
      • 2.e8Q#
    • 1...Se8
      • 2.d8S#
  • Tries
    • 1.Rxe2?
      • threat
        • 2.Sd8#
      • 1...Se6
        • 2.e8Q#
      • 1...fxe2!
  • Keys
    • 1.d8Q!
      • 1...Ke6
        • 2.Qd5#
      • 1...Sxd4
        • 2.Qf8#
      • 1...Sc1
        • 2.Qf8#
      • 1...Sg1
        • 2.Qf8#
      • 1...Sc3
        • 2.Qf8#
      • 1...Sg3
        • 2.Qf8#
      • 1...Sf4
        • 2.Qf8#
      • 1...Sf5
        • 2.e8Q#
      • 1...Sh5
        • 2.e8Q#
      • 1...Se6
        • 2.e8Q#
      • 1...Se8
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 8
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);P_SPINS(b),S_FLIGHT::P=S
    • S(b);::S(G)
    • S(b);XR(D)::S(G)
    • S(e);N_GUARD,P_PINR(D)::P=Q
    • S(e);P_PINR(D),SBLOCK::P=S
  • Tries
    • Try
      • R(B);XS(b)
      • Threat
        • S(G)
      • Vars
        • S(e);N_GUARD,P_PINR(D)::P=Q
      • Refutation
        • P(c);XR(B)
  • Actual
    • P(I);
    • Vars
      • K(d);P_SPINS(b),S_FLIGHT::QAB1(I)
      • S(b);XR(D)::QAR1(I)
      • S(b);::QAR1(I)
      • S(e);N_GUARD,P_PINR(D)::P=Q
      • S(e);N_GUARD,P_PINR(D),SBLOCK::QAB(I)
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