MESON Chess Problem Database

Problem Display
PID: 184760 (8/5N2/8/1P3N2/3Bkb2/5R2/2P5/6QK w - - 0 1)

Steinweg, Richard

Deutsches Wochenschach, 1908

8/5N2/8/1P3N2/3Bkb2/5R2/2P5/6QK

#2

8 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf3
      • 2.Qg2#
  • Tries
    • 1.S7d6+?
      • 1...Kxf3
        • 2.Qd1#
        • 2.Qg2#
      • 1...Kd5
        • 2.Qg8#
      • 1...Bxd6!
    • 1.Qg6?
      • 1...Kxf3
        • 2.Qg2#
      • 1...Kd5
        • 2.Qc6#
      • 1...Bc1
        • 2.Qc6#
      • 1...Bd2
        • 2.Qc6#
      • 1...Bh2
        • 2.Qc6#
      • 1...Be3
        • 2.Qc6#
      • 1...Bg3
        • 2.Qc6#
      • 1...Be5
        • 2.Qc6#
      • 1...Bg5
        • 2.Qc6#
      • 1...Bh6
        • 2.Qc6#
      • 1...Bc7
        • 2.Qc6#
      • 1...Bb8
        • 2.Qc6#
      • 1...Bd6!
  • Keys
    • 1.Qg8!
      • 1...Kxf3
        • 2.Qg2#
      • 1...Kd5
        • 2.Sg5#
        • 2.S7d6#
      • 1...Kxf5
        • 2.Sd6#
      • 1...Bc1
        • 2.Qa8#
      • 1...Bd2
        • 2.Qa8#
      • 1...Bh2
        • 2.Sg5#
        • 2.Qa8#
      • 1...Be3
        • 2.Qa8#
      • 1...Bg3
        • 2.Sg5#
        • 2.Qa8#
      • 1...Be5
        • 2.Sg5#
        • 2.Qa8#
      • 1...Bg5
        • 2.Sxg5#
        • 2.Qa8#
      • 1...Bd6
        • 2.Sg5#
        • 2.Qa8#
      • 1...Bh6
        • 2.Qa8#
      • 1...Bc7
        • 2.Sg5#
        • 2.Qa8#
      • 1...Bb8
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(A)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • B(b);XS(H)
    • Try
      • Q(A);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(A)
        • K(a);S_FLIGHT::QAB1(A)
        • B(b);::QAB(A)
      • Refutation
        • B(b);
  • Actual
    • Q(A);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(A)
      • K(a);P_SPINB(b),S_FLIGHT,XS(G)::S(H)
      • B(b);::QAB(A)
      • B(b);N_GUARD::S(H)
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