MESON Chess Problem Database

Problem Display
PID: 228893 (2R5/2N3P1/1P1p4/p2N3r/Bpk2pR1/2P1p3/1p2Kb2/8 w - - 0 1)

Cristoffanini, Guido

Chemnitzer Tageblatt, 1926

2R5/2N3P1/1P1p4/p2N3r/Bpk2pR1/2P1p3/1p2Kb2/8

#2

9 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sxe3+?
      • 1...Kxc3
        • 2.Sb5#
      • 1...Kc5
        • 2.Scd5#
        • 2.Sa8#
      • 1...Bxe3!
    • 1.g8Q?
      • threat
        • 2.Sb5#
        • 2.Sa6#
        • 2.Sa8#
        • 2.Se8#
      • 1...Kc5
        • 2.Sb5#
        • 2.Sa6#
        • 2.Sa8#
        • 2.Se8#
      • 1...bxc3
        • 2.Sb5#
      • 1...Rh7!
    • 1.g8B?
      • threat
        • 2.Sb5#
        • 2.Sa6#
        • 2.Sa8#
        • 2.Se8#
      • 1...Kc5
        • 2.Sb5#
        • 2.Sa6#
        • 2.Sa8#
        • 2.Se8#
      • 1...bxc3
        • 2.Sb5#
      • 1...Rh7!
  • Keys
    • 1.Sxf4!
      • threat
        • 2.Scd5#
      • 1...Kxc3
        • 2.Sb5#
      • 1...Kc5
        • 2.Scd5#
        • 2.Sa8#
      • 1...bxc3
        • 2.Sd3#
        • 2.Sfe6#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Rc5
        • 2.Sfd5#
      • 1...Rd5
        • 2.Scxd5#
      • 1...Rh8
        • 2.Se8#
      • 1...d5
        • 2.Sb5#
        • 2.Scxd5#
        • 2.Sa6#
        • 2.Sce6#
        • 2.Sa8#
        • 2.Se8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK,XP(c)
      • Vars
        • K(e);N_SPINP(f),P-FLIGHT,XP(B)::R(I)+S(G),DCHECK
      • Refutation
        • B(b);XS(E)
    • Try
      • P(H);
      • Threat
        • DUALS(4)
      • Vars
        • P(d);XP(B)::R(I)+S(G)
      • Refutation
        • R(h);
    • Try
      • P(H);
      • Threat
        • DUALS(4)
      • Vars
        • P(d);XP(B)::R(I)+S(G)
      • Refutation
        • R(h);
  • Actual
    • S(E);XP(f)
    • Threat
      • R(I)+S(G)
    • Vars
      • K(e);P-FLIGHT,XP(B)::R(I)+S(G),DCHECK
      • R(h);N_GUARD::R(I)+S(G),XR(h)
      • R(h);SBLOCK::R(D)+S(E)
      • R(h);::R(I)+S(G),XR(h)
      • R(h);N_GUARD::R(I)+S(G)
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