MESON Chess Problem Database

Problem Display
PID: 119767 (8/3p1K2/8/kPQ5/r1pN4/8/1Pn5/8 w - - 0 1)

Mikan, Ilja

Sachovy Bulletin, 1959

8/3p1K2/8/kPQ5/r1pN4/8/1Pn5/8

#2

5 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Qa7#
    • 1...Sb4
      • 2.Qc7#
    • 1...c3
      • 2.Sb3#
    • 1...d5
      • 2.Sc6#
    • 1...d6
      • 2.Sc6#
  • Keys
    • 1.b4+!
      • 1...Rxb4
        • 2.Qa7#
      • 1...Sxb4
        • 2.Qc7#
      • 1...cxb4 ep
        • 2.Sxb3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(b);SBLOCK::QAR2(D)
    • S(a);SBLOCK::QAB(D)
    • P(c);N_GUARD::S(B)
    • P(e);N_GUARD::S(B)
  • Actual
    • P(A);CHECK
    • Vars
      • R(b);SBLOCK,XP(A)::QAR2(D)
      • S(a);SBLOCK,XP(A)::QAB(D)
      • P(c);EP,XP(A)::S(B),XP(c)
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