MESON Chess Problem Database

Problem Display
PID: 187877 (5N1K/4b1p1/6R1/1n2k3/4B2p/5P1q/3B4/6Q1 w - - 0 1)

Daniel, Arthur William

Tidskrift for Schack, 1910

5N1K/4b1p1/6R1/1n2k3/4B2p/5P1q/3B4/6Q1

#2

7 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Sd7#
      • 2.Re6#
    • 1...Qg2
      • 2.Sd7#
      • 2.Re6#
    • 1...Qe6
      • 2.Rxe6#
    • 1...Qd7
      • 2.Sxd7#
    • 1...Qh1
      • 2.Sd7#
      • 2.Re6#
    • 1...Qh2
      • 2.Sd7#
      • 2.Re6#
    • 1...Qxf3
      • 2.Re6#
    • 1...Qg3
      • 2.Sd7#
      • 2.Re6#
    • 1...Bc5
      • 2.Qxc5#
    • 1...Bg5
      • 2.Qc5#
    • 1...Bf6
      • 2.Qc5#
    • 1...Bd8
      • 2.Qc5#
    • 1...Sa3
      • 2.Qa1#
    • 1...Sd6
      • 2.Qc5#
      • 2.Qa1#
    • 1...Sa7
      • 2.Qa1#
    • 1...Sc7
      • 2.Qa1#
  • Tries
    • 1.Qa1+?
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sd4!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Qc5#
      • 1...Kxd6
        • 2.Bf4#
      • 1...Qxf3
        • 2.Re6#
      • 1...Bxd6
        • 2.Qxg7#
      • 1...Sxd6
        • 2.Qa1#
      • 1...Qe6
        • 2.Rxe6#
      • 1...Qc8
        • 2.Qh2#
      • 1...Sc3
        • 2.Qd4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sc7
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD::R1(E),XQ(a)
    • Q(a);N_GUARD::S(F),XQ(a)
    • Q(a);N_GUARD,XP(C)::R1(E)
    • B(e);N_GUARD::QAR2(A),XB(e)
    • B(e);N_GUARD::QAR2(A)
    • S(c);N_GUARD::QAB(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB(A),XS(c)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • R(E);
    • Threat
      • QAR2(A)
    • Vars
      • K(d);S_FLIGHT,XR(E)::B(B)
      • Q(a);N_GUARD,XP(C)::R1(E)
      • B(e);N_GUARD,SBLOCK,XR(E)::QAB(A),XP(f)
      • S(c);N_GUARD,SBLOCK,XR(E)::QAB(A)
      • Q(a);N_GUARD::R1(E),XQ(a)
      • Q(a);N_GUARD,P_PINS(F)::QAB(A)
      • S(c);N_GUARD::QAB1(A)
      • S(c);N_GUARD::QAB1(A),XS(c)
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