MESON Chess Problem Database

Problem Display
PID: 224590 (KB6/8/2n5/4np2/2PNk3/5r2/3R1P2/7Q w - - 0 1)

von Hoene, HH

Nashville Daily American, 1888

KB6/8/2n5/4np2/2PNk3/5r2/3R1P2/7Q

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qh4#
    • 1...Sxc4
      • 2.Qxf3#
    • 1...Sg4
      • 2.Qxf3#
    • 1...Sg6
      • 2.Qxf3#
    • 1...Sd7
      • 2.Qxf3#
    • 1...Sf7
      • 2.Qxf3#
  • Tries
    • 1.Se6?
      • 1...Sxc4
        • 2.Sc5#
        • 2.Sg5#
      • 1...Sxb8
        • 2.Rd4#
      • 1...Sd3
        • 2.Re2#
      • 1...Sg4
        • 2.Sc5#
        • 2.Sg5#
      • 1...Sg6
        • 2.Sc5#
        • 2.Sg5#
      • 1...Sd7
        • 2.Sg5#
      • 1...Sf7
        • 2.Sc5#
      • 1...Sb4
        • 2.Rd4#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sa5
        • 2.Rd4#
      • 1...Sa7
        • 2.Rd4#
      • 1...Se7
        • 2.Rd4#
      • 1...Sd8
        • 2.Rd4#
      • 1...f4!
    • 1.Qe1+?
      • 1...Re3
        • 2.Qxe3#
      • 1...Kf4!
  • Keys
    • 1.Sb5!
      • 1...Kf4
        • 2.Qh4#
      • 1...Sxc4
        • 2.Sc3#
      • 1...Sxb8
        • 2.Rd4#
      • 1...f4
        • 2.Sd6#
      • 1...Sd3
        • 2.Re2#
      • 1...Sg4
        • 2.Sc3#
      • 1...Sg6
        • 2.Sc3#
      • 1...Sd7
        • 2.Sc3#
      • 1...Sf7
        • 2.Sc3#
      • 1...Sb4
        • 2.Rd4#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sa5
        • 2.Rd4#
      • 1...Sa7
        • 2.Rd4#
      • 1...Se7
        • 2.Rd4#
      • 1...Sd8
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINR(a),P-FLIGHT,P_SPINS(c)::QAR2(A)
    • S(c);N_GUARD,XP(D)::QAB1(A),XR(a)
    • S(c);N_GUARD::QAB1(A),XR(a)
  • Tries
    • Try
      • S(E);
      • Vars
        • S(e);N_GUARD,XB(G)::R1(B)
        • S(c);SBLOCK::R(B)
        • S(c);::S(E)
        • S(e);N_GUARD::R1(B)
        • S(e);N_GUARD::R1(B),XS(e)
      • Refutation
        • P(d);
    • Try
      • Q(A);CHECK,N_PINR(a)
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::QAR1(A),XR(a)
      • Refutation
        • K(b);P-FLIGHT,P_SPINS(c)
  • Actual
    • S(E);
    • Vars
      • K(b);N_SPINR(a),P-FLIGHT,P_SPINS(c)::QAR2(A)
      • S(c);XP(D)::S(E)
      • S(e);N_GUARD,XB(G)::R1(B)
      • P(d);SBLOCK::S(E)
      • S(c);SBLOCK::R(B)
      • S(c);::S(E)
      • S(e);N_GUARD::R1(B)
      • S(e);N_GUARD::R1(B),XS(e)
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