MESON Chess Problem Database

Problem Display
PID: 245676 (2b1R3/r4p2/r4p2/b2QNp1B/2p2P2/8/1n1P2Kp/4k2n w - - 0 1)

Wirtanen, Erkki Aukusti

L'Italia Scacchistica, 1934

2b1R3/r4p2/r4p2/b2QNp1B/2p2P2/8/1n1P2Kp/4k2n

#2

7 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd2
      • 2.Sd3#
    • 1...Bb7
      • 2.Sc6#
    • 1...Sd1
      • 2.Sf3#
    • 1...fxe5
      • 2.Rxe5#
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qe3#
      • 1...Bb7+
        • 2.Sc6#
      • 1...Bxd2
        • 2.Sd3#
      • 1...Bb6
        • 2.Sd7#
      • 1...Sg3
        • 2.Qf2#
      • 1...Sd1
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(f);SBLOCK,XP(A)::R(G)+S(E),DCHECK
    • B(l);N_GUARD,P_PINQ(D),S_CUTR(j)::R(G)+S(E)
    • S(c);SBLOCK::R(G)+S(E),DCHECK
    • P(i);OGATE,P_SPINP(i),XS(E)::R(G),XP(i)
  • Actual
    • Q(D);
    • Threat
      • QAR2(D)
    • Vars
      • B(l);CHECK,N_GUARD,S_CUTR(j)::R(G)+S(E)
      • B(f);SBLOCK,XP(A)::R(G)+S(E),DCHECK
      • B(f);S_CUTR(h)::R(G)+S(E)
      • S(b);N_GUARD::QAB1(D)
      • S(c);SBLOCK::R(G)+S(E),DCHECK
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