MESON Chess Problem Database

Problem Display
PID: 39971 (7n/R7/2NRPk1P/6pP/3N2p1/1P3b2/4Pbp1/BB1KnQq1 w - - 0 1)

Lindner, Laszlo

11th HM., The Puzzler, 1934

7n/R7/2NRPk1P/6pP/3N2p1/1P3b2/4Pbp1/BB1KnQq1

#2

13 + 9

4080 Mattbilder eines Lebens 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2+
      • 2.Sxe2#
    • 1...Bd5
      • 2.Sb5#
    • 1...Bxc6
      • 2.Sb5#
      • 2.Sxc6#
    • 1...Sg6
      • 2.Rf7#
    • 1...Sf7
      • 2.Rxf7#
      • 2.exf7#
  • Keys
    • 1.Ra5!
      • threat
        • 2.Rf5#
      • 1...Bxe2+
        • 2.Sxe2#
      • 1...Bxc6
        • 2.Sxc6#
      • 1...Be4
        • 2.Sc2#
      • 1...Bd5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(e);CHECK,P_SPINB(c),XP(E)::B(A)+S(G),XB(e)
    • B(e);N_PINP(E),P_SPINB(c)::B(A)+S(G)
    • S(i);N_GUARD::R1(M)
  • Actual
    • R(M);
    • Threat
      • R1(M)
    • Vars
      • B(e);CHECK,P_SPINB(c),XP(E)::B(A)+S(G),XB(e)
      • B(e);N_PINP(E),P_SPINB(c),XS(I)::B(A)+S(G),XB(e)
      • B(e);N_PINP(E),P_SPINB(c)::B(A)+S(G)
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