MESON Chess Problem Database

Problem Display
PID: 202648 (1Q3K2/p7/r1k5/bN6/1p1Rn3/3N4/8/8 w - - 0 1)

Asberg, Erik

Helsingin Sanomat, 1923

1Q3K2/p7/r1k5/bN6/1p1Rn3/3N4/8/8

#2

5 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rb6
      • 2.Sxa7#
    • 1...Sd2
      • 2.Rd6#
    • 1...Sf2
      • 2.Rd6#
    • 1...Sc3
      • 2.Rd6#
    • 1...Sg3
      • 2.Rd6#
    • 1...Sc5
      • 2.Se5#
      • 2.Rd6#
    • 1...Sg5
      • 2.Rd6#
    • 1...Sd6
      • 2.Rxd6#
    • 1...Sf6
      • 2.Rd6#
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qb7#
      • 1...Kd7
        • 2.Qc8#
      • 1...Sxd6
        • 2.Rxd6#
      • 1...Rb6
        • 2.Qc8#
      • 1...Bc7
        • 2.Qb5#
      • 1...Sc5
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(d);N_GUARD::S(C),XP(f)
    • S(b);N_GUARD::R1(B)
    • S(b);N_GUARD::R1(B),XS(b)
  • Actual
    • S(C);
    • Threat
      • QAB1(D)
    • Vars
      • K(e);S_FLIGHT::QAB1(D)
      • S(b);OGATE,XS(C)::R1(B),XS(b)
      • R(d);SBLOCK,S_CUTB(c)::QAR2(D)
      • B(c);SBLOCK::QAB1(D)
      • S(b);SBLOCK::S(A)
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