MESON Chess Problem Database

Problem Display
PID: 148397 (2R5/b7/b1n1p3/3kPn2/N1p2K2/3Pp3/B7/Q4N2 w - - 0 1)

Skowronek, Ernst

Westfalische Landeszeitung, 1937

2R5/b7/b1n1p3/3kPn2/N1p2K2/3Pp3/B7/Q4N2

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bb7
      • 2.Bxc4#
      • 2.dxc4#
    • 1...Bxc8
      • 2.Bxc4#
      • 2.dxc4#
    • 1...Sfd4
      • 2.Sxe3#
    • 1...Scd4
      • 2.Sc3#
    • 1...Sxe5
      • 2.Qxe5#
  • Tries
    • 1.Rd8+?
      • 1...Sd6
        • 2.Rxd6#
      • 1...Sxd8!
  • Keys
    • 1.Qd1!
      • threat
        • 2.dxc4#
      • 1...Kd4
        • 2.dxc4#
      • 1...Bd4
        • 2.Qf3#
      • 1...Sfd4
        • 2.Sxe3#
      • 1...Scd4
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(d);N_GUARD,S_CUTB(h)::S(B),XP(a)
    • S(f);SBLOCK::S(E)
    • S(f);OGATE,XP(G)::QAR1(A),XS(f)
  • Tries
    • Try
      • R(H);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::R1(H),XS(d)
      • Refutation
        • S(f);XR(H)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)+P(D)DCHECK,XP(b)
    • Vars
      • K(c);N_SPINP(b),P-FLIGHT::QAR(A)+P(D),XP(b)
      • B(h);SBLOCK::QAB(A)
      • S(d);N_GUARD,SBLOCK,S_CUTB(h)::S(B),XP(a)
      • S(f);SBLOCK::S(E)
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