MESON Chess Problem Database

Problem Display
PID: 61751 (8/8/1b2rnN1/1pR5/4k1p1/3R4/2BPn3/K7 w - - 0 1)

Lissner, Morris

Tijdschrift vd NSB, 1896

8/8/1b2rnN1/1pR5/4k1p1/3R4/2BPn3/K7

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Rxe5#
    • 1...Rc6
      • 2.Re5#
    • 1...Rd6
      • 2.Re5#
    • 1...Sd4
      • 2.Re3#
  • Keys
    • 1.Rf5!
      • threat
        • 2.Rdd5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Bd4+
        • 2.Rc3#
      • 1...Kxf5
        • 2.Rd5#
      • 1...Re5
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
        • 2.Rxe5#
      • 1...Rc6
        • 2.Re5#
      • 1...Rd6
        • 2.Rdd5#
        • 2.Rxd6#
        • 2.Re5#
      • 1...Bd8
        • 2.Rdd5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rxd8#
      • 1...Sc1
        • 2.Rf4#
      • 1...Sd4
        • 2.Re3#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Sd5
        • 2.Rdxd5#
      • 1...Sd7
        • 2.Rdd5#
        • 2.Rd6#
        • 2.Rxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • R(f);N_GUARD::R1(E),XR(f)
    • R(f);N_GUARD::R1(E)
    • S(a);SBLOCK::B(B)+R(D),DCHECK
  • Actual
    • R(E);
    • Threat
      • DUALS(4)
    • Vars
      • B(e);CHECK,SBLOCK::B(B)+R(D)
      • K(b);S_FLIGHT,XR(E)::B(B)+R(D),DCHECK
      • R(f);N_GUARD::R1(E)
      • S(a);N_GUARD::R1(E)
      • S(a);SBLOCK::B(B)+R(D),DCHECK
      • S(a);N_GUARD::R1(E),XS(a)
      • S(g);::B(B)+R(D),XS(g)
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