MESON Chess Problem Database

Problem Display
PID: 144132 (8/2b2pN1/8/1K1k3q/4NpP1/2Pn4/4Qn2/7B w - - 0 1)

Daniel, Arthur William

HM., La Strategie, 1909

8/2b2pN1/8/1K1k3q/4NpP1/2Pn4/4Qn2/7B

#2

7 + 7

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Qa2#
    • 1...Be5
      • 2.Qa2#
    • 1...Bd6
      • 2.Sf6#
  • Tries
    • 1.Qxd3+?
      • 1...Ke5
        • 2.Qd4#
      • 1...Sxd3!
  • Keys
    • 1.Se8!
      • threat
        • 2.S4f6#
      • 1...Ke6+
        • 2.Sc5#
      • 1...Ke5
        • 2.Sxf2#
      • 1...Sxe4
        • 2.Qxe4#
      • 1...Qe5
        • 2.Qa2#
      • 1...Be5
        • 2.Qa2#
      • 1...Se5
        • 2.Sxc7#
      • 1...f6
        • 2.S4xf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • Q(e);SBLOCK::QAB(B)
    • B(f);SBLOCK::QAB(B)
    • B(f);SBLOCK::B(A)+S(D),DCHECK
  • Tries
    • Try
      • Q(B);CHECK,XS(b)
      • Vars
        • K(d);P-FLIGHT::QAB1(B)
      • Refutation
        • S(a);XQ(B)
  • Actual
    • S(G);
    • Threat
      • B(A)+S(D),DCHECK
    • Vars
      • K(d);CHECK,S_FLIGHT::QAR(B)+S(D),DCHECK
      • K(d);P-FLIGHT::QAR(B)+S(D),XS(a)
      • S(a);OGATE,P_SPINS(a),XS(D)::QAB1(B),XS(a)
      • Q(e);SBLOCK::QAB(B)
      • B(f);SBLOCK::QAB(B)
      • S(b);SBLOCK::S(G),XB(f)
      • P(g);::B(A)+S(D),DCHECK,XP(g)
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