MESON Chess Problem Database

Problem Display
PID: 11339 (3R4/3N4/p1PK1p2/Pb6/4krBQ/2Rn1pP1/1P3P2/8 w - - 0 1)

Fillery, William Edmund Frank

Chess, 1938

3R4/3N4/p1PK1p2/Pb6/4krBQ/2Rn1pP1/1P3P2/8

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Rc4#
    • 1...Bc4
      • 2.Rxc4#
    • 1...Bxc6
      • 2.Rc4#
  • Tries
    • 1.Sc5+?
      • 1...Kd4
        • 2.Ke6#
      • 1...Sxc5!
    • 1.Sxf6+?
      • 1...Kd4
        • 2.Ke6#
      • 1...Rxf6+!
  • Keys
    • 1.Ke6!
      • 1...Bc4+
        • 2.Rxc4#
      • 1...Sc5+
        • 2.Sxc5#
      • 1...Kd4
        • 2.Sc5#
        • 2.Sxf6#
      • 1...Rxg4
        • 2.Sxf6#
      • 1...Bxc6
        • 2.Rc4#
      • 1...Sxb2
        • 2.Sc5#
      • 1...Sxf2
        • 2.Sc5#
      • 1...Rf5
        • 2.Bxf5#
      • 1...Ba4
        • 2.Rc4#
      • 1...Sc1
        • 2.Sc5#
      • 1...Se1
        • 2.Sc5#
      • 1...Sb4
        • 2.Sc5#
      • 1...Se5
        • 2.Sc5#
      • 1...f5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(e);N_GUARD::R(C)
    • B(e);N_GUARD::R(C),XB(e)
    • B(e);N_GUARD,XP(H)::R(C)
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(c);P-FLIGHT::R(K)+K(I)
      • Refutation
        • S(a);XS(J)
    • Try
      • S(J);CHECK,XP(g)
      • Vars
        • K(c);P-FLIGHT::R(K)+K(I)
      • Refutation
        • R(d);CHECK,XS(J)
  • Actual
    • K(I);P-FLIGHT
    • Vars
      • B(e);CHECK,N_GUARD::R(C),XB(e)
      • S(a);CHECK,N_GUARD::S(J),XS(a)
      • R(d);N_GUARD,P_SPINR(d),XB(E)::S(J),XP(g)
      • B(e);N_GUARD,XP(H)::R(C)
      • S(a);N_GUARD,XP(A)::S(J)
      • S(a);N_GUARD,XP(B)::S(J)
      • R(d);::QAR(F)+B(E),DCHECK,XR(d)
      • B(e);N_GUARD::R(C)
      • S(a);N_GUARD::S(J)
      • P(g);S_CUTR(d)::S(J)
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