MESON Chess Problem Database

Problem Display
PID: 189526 (8/K7/p2p3b/2Nk2nN/r1R3B1/3P1p2/Q3Pp2/q6b w - - 0 1)

Ellerman, Arnoldo

El Diario, 1911

8/K7/p2p3b/2Nk2nN/r1R3B1/3P1p2/Q3Pp2/q6b

#2

8 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sf4+?
      • 1...Ke5
        • 2.Sd7#
      • 1...Kc6!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sf4#
      • 1...Qd4+
        • 2.Rc5#
      • 1...Rxc4
        • 2.Qxc4#
      • 1...Qe5
        • 2.Sb6#
      • 1...Qf6
        • 2.Shxf6#
      • 1...Qc1
        • 2.Shf6#
      • 1...Sh3
        • 2.e4#
      • 1...Se4
        • 2.dxe4#
      • 1...Se6
        • 2.e4#
      • 1...Sf7
        • 2.e4#
      • 1...Sh7
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(f);P-FLIGHT::S(F)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • S(F);
    • Threat
      • S(G)
    • Vars
      • Q(a);CHECK,SBLOCK::QAB(A)+R(D),DCHECK
      • R(e);OGATE,P_SPINR(e),XR(D)::QAB1(A),XR(e)
      • Q(a);SBLOCK::S(F)
      • Q(a);N_GUARD::S(G),XQ(a)
      • Q(a);N_GUARD::S(G)
      • S(g);N_GUARD::P(B)
      • S(g);OGATE::P(C),XS(g)
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