MESON Chess Problem Database

Problem Display
PID: 203260 (1b4R1/2k1P3/KNn5/1P1b4/1p6/8/8/8 w - - 0 1)

Roese, Willibald Erich Hermann Hugo

Deutsche Schachblatter, 1924

1b4R1/2k1P3/KNn5/1P1b4/1p6/8/8/8

#2

5 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sd8
      • 2.exd8Q#
      • 2.e8S#
  • Tries
    • 1.e8Q?
      • threat
        • 2.Qd7#
      • 1...Be6
        • 2.Qxc6#
      • 1...Se5
        • 2.Qxe5#
        • 2.Qxb8#
        • 2.Qd8#
      • 1...Kd6!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Sxd5#
        • 2.Sa8#
        • 2.Rd7#
      • 1...Sxe7
        • 2.Rd7#
      • 1...Sxd8
        • 2.e8S#
      • 1...Bh1
        • 2.Sa8#
        • 2.Rd7#
      • 1...Ba2
        • 2.Sa8#
        • 2.Rd7#
      • 1...Bg2
        • 2.Sa8#
        • 2.Rd7#
      • 1...Bb3
        • 2.Sa8#
        • 2.Rd7#
      • 1...Bf3
        • 2.Sa8#
        • 2.Rd7#
      • 1...Bc4
        • 2.Sa8#
        • 2.Rd7#
      • 1...Be4
        • 2.Sa8#
        • 2.Rd7#
      • 1...Be6
        • 2.Sa8#
      • 1...Bf7
        • 2.Sa8#
        • 2.Rd7#
      • 1...Bg8
        • 2.Sa8#
        • 2.Rd7#
      • 1...Ba7
        • 2.Sxd5#
        • 2.Sa8#
      • 1...Sd4
        • 2.Sxd5#
        • 2.Rd7#
      • 1...Sa5
        • 2.Sxd5#
        • 2.Rd7#
      • 1...Se5
        • 2.Sxd5#
      • 1...Sa7
        • 2.Sxd5#
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(D);
      • Threat
        • QAR1(D)
      • Vars
        • B(b);N_GUARD::QAR1(D),XS(c)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(E);
    • Threat
      • DUALS(3)
    • Vars
      • S(c);XP(D)::R1(E)
      • S(c);SBLOCK,XR(E)::P=S
      • B(b);::S(C)
      • S(c);::S(C),XB(b)
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