MESON Chess Problem Database

Problem Display
PID: 100885 (8/3B4/3B1r2/2Pk4/1K1p1P2/3Q4/7b/7b w - - 0 1)

Coultaus, Joseph A

Good Companions, 1919

8/3B4/3B1r2/2Pk4/1K1p1P2/3Q4/7b/7b

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Qxf5#
    • 1...Rxd6
      • 2.Qf5#
    • 1...Rg6
      • 2.Qf5#
    • 1...Rh6
      • 2.Qf5#
    • 1...Bf3
      • 2.Qxf3#
    • 1...Be4
      • 2.Qc4#
      • 2.Qb3#
  • Tries
    • 1.Qe2?
      • threat
        • 2.Qe5#
      • 1...Rf5
        • 2.Qe6#
      • 1...Re6
        • 2.Qxe6#
      • 1...Be4
        • 2.Qc4#
        • 2.Qa2#
      • 1...Bxf4!
  • Keys
    • 1.Qh3!
      • 1...Ke4
        • 2.Bc6#
      • 1...Rxf4
        • 2.Qe6#
      • 1...Rxd6
        • 2.Qf5#
      • 1...Bxf4
        • 2.Qxh1#
      • 1...d3
        • 2.Qxd3#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Re6
        • 2.Qxe6#
      • 1...Rg6
        • 2.Qf5#
      • 1...Rh6
        • 2.Qf5#
      • 1...Rf7
        • 2.Qe6#
      • 1...Rf8
        • 2.Qe6#
      • 1...Bg2
        • 2.Qxg2#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Be4
        • 2.Qb3#
      • 1...Bg1
        • 2.Qxh1#
      • 1...Bg3
        • 2.Qxh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • R(e);N_GUARD::QAR2(A),XR(e)
    • R(e);N_GUARD,XB(E)::QAR2(A)
    • R(e);N_GUARD::QAR2(A)
    • B(a);N_GUARD::QAB(A),XB(a)
  • Tries
    • Try
      • Q(A);N_PINP(c)
      • Threat
        • QAR1(A)
      • Vars
        • R(e);N_GUARD::QAB1(A)
        • R(e);N_GUARD::QAB1(A),XR(e)
      • Refutation
        • B(b);XP(C)
  • Actual
    • Q(A);N_PINP(c)
    • Vars
      • K(d);S_FLIGHT::B(F)
      • R(e);N_GUARD,XP(C)::QAB1(A)
      • R(e);N_GUARD,XB(E)::QAR2(A)
      • B(b);OGATE,XP(C)::QAB(A),XB(a)
      • P(c);OGATEB::QAR2(A),XP(c)
      • R(e);N_GUARD::QAR2(A),XR(e)
      • R(e);N_GUARD::QAB1(A),XR(e)
      • R(e);N_GUARD::QAR2(A)
      • R(e);N_GUARD::QAB1(A)
      • B(a);N_GUARD::QAB(A),XB(a)
      • B(a);SBLOCK::QAB(A)
      • B(b);OGATE::QAB(A),XB(a)
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