MESON Chess Problem Database

Problem Display
PID: 39717 (2RK3k/3P3p/R5pP/3Bqp2/1p1B1p2/2b5/8/2r5 w - - 0 1)

Lindner, Laszlo

Comm., British Chess Magazine, 1934/I

2RK3k/3P3p/R5pP/3Bqp2/1p1B1p2/2b5/8/2r5

#2

7 + 9

4080 Mattbilder eines Lebens 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Kc7#
      • 2.Ke7#
    • 1...Qf6+
      • 2.Kc7#
    • 1...Qg7
      • 2.Kc7#
      • 2.hxg7#
    • 1...Be1
      • 2.Bxe5#
    • 1...Bd2
      • 2.Bxe5#
  • Tries
    • 1.Re6?
      • threat
        • 2.Ke7#
        • 2.Re8#
      • 1...Qf6+
        • 2.Kc7#
      • 1...Kg8
        • 2.Ke7#
        • 2.Re8#
      • 1...Qg7
        • 2.Kc7#
        • 2.Re8#
      • 1...Ba1
        • 2.Re8#
      • 1...Be1
        • 2.Re8#
      • 1...Bb2
        • 2.Re8#
      • 1...Bd2
        • 2.Re8#
      • 1...Bxd4!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Rf8#
      • 1...Qxf6+
        • 2.Kc7#
      • 1...Qc7+
        • 2.Kxc7#
      • 1...Qe7+
        • 2.Kxe7#
      • 1...Qe8+
        • 2.dxe8Q#
        • 2.dxe8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(e);CHECK::R(F)+K(G)
    • B(b);N_GUARD::B(A),XQ(e)
  • Tries
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);CHECK::R(F)+K(G)
        • B(b);::R(C)
      • Refutation
        • B(b);N_SPINQ(e),XB(A)
  • Actual
    • R(C);N_PINQ(e)
    • Threat
      • R(C)
    • Vars
      • Q(e);CHECK,P_SPINQ(e),XR(C)::R(F)+K(G)
      • Q(e);CHECK::R(F)+K(G),XQ(e)
      • Q(e);CHECK,OGATE::PXQ(e)=Q
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