MESON Chess Problem Database

Problem Display
PID: 245695 (8/3Q4/3n2q1/n1N1R1P1/3kb3/N1p5/4R2P/4K3 w - - 0 1)

Wirtanen, Erkki Aukusti

Parallele 50, 1951

8/3Q4/3n2q1/n1N1R1P1/3kb3/N1p5/4R2P/4K3

#2

8 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qh5
      • 2.R2xe4#
    • 1...Qf7
      • 2.R2xe4#
    • 1...Qe8
      • 2.R2xe4#
    • 1...Qxg5
      • 2.R2xe4#
    • 1...Qe6
      • 2.R2xe4#
    • 1...Qf6
      • 2.R2xe4#
    • 1...Qh6
      • 2.R2xe4#
    • 1...Qg7
      • 2.R2xe4#
    • 1...Qg8
      • 2.R2xe4#
  • Keys
    • 1.Qxd6+!
      • 1...Qxd6
        • 2.R2xe4#
      • 1...Bd5
        • 2.Rxd5#
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(f);N_GUARD::R1(B),XB(c)
    • Q(f);N_GUARD,XP(G)::R1(B),XB(c)
  • Actual
    • Q(H);CHECK,XS(e)
    • Vars
      • Q(f);XQ(H)::R1(B),XB(c)
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