MESON Chess Problem Database

Problem Display
PID: 48604 (8/7K/8/N3pN2/BbP1kn1R/8/8/1b3RQ1 w - - 0 1)

Taylor, Jesse Paul

American Chess Magazine, 0000

8/7K/8/N3pN2/BbP1kn1R/8/8/1b3RQ1

#2

8 + 5

5024 Elementary Chess Problems 1880
3713 Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qe3#
    • 1...Kxf5
      • 2.Qg6#
    • 1...Ba2
      • 2.Bc2#
    • 1...Bc2
      • 2.Bxc2#
    • 1...Bd3
      • 2.Sg3#
  • Tries
    • 1.Bc6+?
      • 1...Kxf5
        • 2.Qg6#
      • 1...Kd3!
    • 1.Rfxf4+?
      • 1...Kd3
        • 2.Qe3#
      • 1...exf4!
    • 1.Rhxf4+?
      • 1...Kd3
        • 2.Qe3#
      • 1...exf4!
    • 1.Qg2+?
      • 1...Kxf5
        • 2.Qg6#
      • 1...Kd3!
  • Keys
    • 1.Qb6!
      • 1...Kd3
        • 2.Qe3#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Bxa5
        • 2.Qxb1#
      • 1...Be1
        • 2.Qxb1#
      • 1...Ba2
        • 2.Bc2#
      • 1...Bc2
        • 2.Bxc2#
      • 1...Bd3
        • 2.Sg3#
      • 1...Bd2
        • 2.Qxb1#
      • 1...Ba3
        • 2.Qxb1#
      • 1...Bc3
        • 2.Qxb1#
      • 1...Bc5
        • 2.Qxb1#
      • 1...Bd6
        • 2.Qxb1#
      • 1...Be7
        • 2.Qxb1#
      • 1...Bf8
        • 2.Qxb1#

This anticipates 73456(1992)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINS(d),S_FLIGHT::QAR1(B)
    • K(c);OGATEB,S_FLIGHT,XS(G)::QAB1(B)
    • B(a);N_GUARD::B(C)
    • B(a);N_GUARD::B(C),XB(a)
    • B(a);SBLOCK::S(G)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(G)::QAB1(B)
      • Refutation
        • K(c);N_SPINS(d),S_FLIGHT
    • Try
      • R(A);CHECK,XS(d)
      • Vars
        • K(c);S_FLIGHT::QAR1(B)
      • Refutation
        • P(e);P_SPINP(e),XR(A)
    • Try
      • R(E);CHECK,XS(d)
      • Vars
        • K(c);S_FLIGHT::QAR1(B)
      • Refutation
        • P(e);XR(E)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(G)::QAB1(B)
      • Refutation
        • K(c);N_SPINS(d),S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(c);N_SPINS(d),S_FLIGHT::QAR1(B)
      • K(c);OGATEB,S_FLIGHT,XS(G)::QAB1(B)
      • B(b);OGATE,XS(F)::QAB(B),XB(a)
      • B(b);OGATE::QAB(B),XB(a)
      • B(a);N_GUARD::B(C)
      • B(a);N_GUARD::B(C),XB(a)
      • B(a);SBLOCK::S(G)
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