MESON Chess Problem Database

Problem Display
PID: 272397 (5B2/3PR3/4B3/8/3r4/k7/1R6/K2n2b1 w - - 0 1)

Ekstrom, Sven Johan Adrian

Schackvarlden, 1942

5B2/3PR3/4B3/8/3r4/k7/1R6/K2n2b1

#2

6 + 4

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Rb3#
    • 1...Rb4
      • 2.Ra2#
  • Tries
    • 1.Re8+?
      • 1...Ka4
        • 2.Ra8#
      • 1...Rb4
        • 2.Ra2#
      • 1...Rd6!
  • Keys
    • 1.d8Q!
      • threat
        • 2.Ra7#
      • 1...Ka4
        • 2.Ra7#
        • 2.Qa8#
      • 1...Rd6
        • 2.Qa5#
      • 1...Ra4
        • 2.Rb3#
      • 1...Rb4
        • 2.Ra2#
      • 1...Rd7
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(d);SBLOCK::R1(B)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(c);P-FLIGHT::R(E)
        • R(d);P_SPINR(d)::R1(B)
      • Refutation
        • R(d);P_SPINR(d)
  • Actual
    • P(D);
    • Threat
      • B(F)+R(E),DCHECK
    • Vars
      • R(d);N_GUARD::QAR2(D)
      • R(d);SBLOCK::R1(B)
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