MESON Chess Problem Database

Problem Display
PID: 218596 (8/2r2B2/2R2b2/2rnBk2/2NKnP2/2p2p2/2q2N2/8 w - - 0 1)

Arnold, William E

Newark Sunday Call, 1882

8/2r2B2/2R2b2/2rnBk2/2NKnP2/2p2p2/2q2N2/8

#2

7 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Bg6#
    • 1...Bg5
      • 2.Bg6#
    • 1...Be7
      • 2.Bg6#
    • 1...Bg7
      • 2.Bg6#
    • 1...Bd8
      • 2.Bg6#
    • 1...Bh8
      • 2.Bg6#
    • 1...Sd2
      • 2.Sd6#
    • 1...Sg3
      • 2.Sd6#
    • 1...Sg5
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sb4
      • 2.Se3#
    • 1...Sb6
      • 2.Se3#
    • 1...Se7
      • 2.Se3#
  • Keys
    • 1.Rxf6+!
      • 1...Sexf6
        • 2.Sd6#
      • 1...Sdxf6
        • 2.Se3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 14
  • Sets
    • B(h);N_PINB(E)::B(G)
    • B(h);::B(G)
    • S(d);N_GUARD::S(B)
    • S(d);N_GUARD::S(B),XS(d)
    • S(f);N_GUARD::S(B),XS(f)
    • S(f);N_GUARD::S(B)
  • Actual
    • R(F);CHECK,N_SPINB(E),XB(h)
    • Vars
      • S(d);XR(F)::S(B)
      • S(f);XR(F)::S(B)
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