MESON Chess Problem Database

Problem Display
PID: 112966 (B7/Q2R1N2/5P1K/3N3p/1P2kr1B/2n1PR1P/8/8 w - - 0 1)

Andrew, Frederick William

Irish Figaro, 1898

B7/Q2R1N2/5P1K/3N3p/1P2kr1B/2n1PR1P/8/8

#2

12 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg4
      • 2.Sxc3#
    • 1...Rxh4
      • 2.Sxc3#
    • 1...Rf5
      • 2.Sxc3#
    • 1...Rxf6+
      • 2.Sxf6#
    • 1...Sb1
      • 2.Se7#
    • 1...Sd1
      • 2.Se7#
    • 1...Sa2
      • 2.Se7#
    • 1...Se2
      • 2.Se7#
    • 1...Sa4
      • 2.Se7#
    • 1...Sb5
      • 2.Se7#
  • Tries
    • 1.Sc7+?
      • 1...Kf5
        • 2.Rxf4#
      • 1...Sd5!
    • 1.Qd4+?
      • 1...Kf5
        • 2.Qe5#
      • 1...Kxf3!
  • Keys
    • 1.Qa2!
      • 1...Rxf6+
        • 2.Sxf6#
      • 1...Kd3
        • 2.Sxf4#
      • 1...Kxf3
        • 2.Sg5#
      • 1...Kf5
        • 2.Se7#
      • 1...Rxf3
        • 2.Qc2#
      • 1...Rxh4
        • 2.Sxc3#
      • 1...Sxa2
        • 2.Se7#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...Rg4
        • 2.Sxc3#
      • 1...Rf5
        • 2.Sxc3#
      • 1...Sb1
        • 2.Se7#
      • 1...Sd1
        • 2.Se7#
      • 1...Se2
        • 2.Se7#
      • 1...Sa4
        • 2.Se7#
      • 1...Sb5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(c);::B(L)+S(F),DCHECK,XS(a)
    • R(c);XB(E)::B(L)+S(F),DCHECK,XS(a)
    • R(c);CHECK,XP(G)::B(L)+S(F),DCHECK,XR(c)
    • S(a);N_GUARD::B(L)+S(F)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);P_SPINR(c),S_FLIGHT::R1(B),XR(c)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);P_SPINR(c),S_FLIGHT::QAR1(I)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
  • Actual
    • Q(I);
    • Vars
      • R(c);CHECK,XP(G)::B(L)+S(F),DCHECK,XR(c)
      • K(b);S_FLIGHT::R(J)+S(F),DCHECK,XR(c)
      • K(b);S_FLIGHT,XR(B)::S(K)
      • K(b);P_SPINR(c),S_FLIGHT::S(F)
      • R(c);SBLOCK,XR(B)::QAB(I)
      • R(c);XB(E)::B(L)+S(F),DCHECK,XS(a)
      • S(a);N_GUARD,XQ(I)::B(L)+S(F)
      • S(a);OGATE,P_SPINS(a),XS(F)::QAB1(I),XS(a)
      • R(c);::B(L)+S(F),DCHECK,XS(a)
      • S(a);N_GUARD::B(L)+S(F)
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