MESON Chess Problem Database

Problem Display
PID: 9564 (bn1N4/qrn5/8/b1P4R/pkB4R/r1ppNQ2/1P4K1/4B3 w - - 0 1)

Blake, Percy Francis

Sydney Morning Herald, 1905

bn1N4/qrn5/8/b1P4R/pkB4R/r1ppNQ2/1P4K1/4B3

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bxc3#
    • 1...Ra2
      • 2.Bxc3#
    • 1...Rb3
      • 2.Bxd3#
      • 2.Ba6#
    • 1...Sa6
      • 2.Sc6#
    • 1...Sc6
      • 2.Sxc6#
    • 1...Sd7
      • 2.Sc6#
    • 1...d2
      • 2.Sc2#
  • Tries
    • 1.Sd5+?
      • 1...Kxc5
        • 2.Qf8#
      • 1...Sxd5!
  • Keys
    • 1.Qf8!
      • 1...Rb5+
        • 2.Bd5#
      • 1...Rb6+
        • 2.c6#
      • 1...Qxc5
        • 2.Qxc5#
      • 1...Bb6
        • 2.cxb6#
      • 1...Qb6
        • 2.cxb6#
      • 1...Qa6
        • 2.c6#
      • 1...Ra1
        • 2.Bxc3#
      • 1...Ra2
        • 2.Bxc3#
      • 1...Rb3
        • 2.Bxd3#
        • 2.Ba6#
      • 1...Sb5
        • 2.Sd5#
      • 1...Sd5
        • 2.Sxd5#
      • 1...Sca6
        • 2.Sd5#
      • 1...Se6
        • 2.Sd5#
      • 1...Se8
        • 2.Sd5#
      • 1...Sba6
        • 2.Sc6#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Sd7
        • 2.Sc6#
      • 1...d2
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD::B(A),XP(b)
    • R(a);N_GUARD,P_PINP(B)::B(A),XP(b)
    • S(k);N_GUARD::S(J)
    • S(k);N_GUARD::S(J),XS(k)
    • P(c);N_GUARD,N_SPINP(b)::S(D)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(e);N_SPINP(b),S_FLIGHT,XP(H)::QAB(E)
      • Refutation
        • S(i);XS(D)
  • Actual
    • Q(E);
    • Vars
      • R(h);CHECK,SBLOCK::R(G)+B(F)
      • R(h);CHECK,S_CUTQ(g)::QAB(E)+P(H)
      • Q(g);OGATE,P_SPINQ(g),XP(H)::QAB1(E),XQ(g)
      • B(f);OGATE::QAB(E)+P(H),XB(f)
      • Q(g);OGATE::QAB(E)+P(H),XQ(g)
      • Q(g);N_GUARD::QAB(E)+P(H)
      • R(a);N_GUARD::B(A),XP(b)
      • R(a);N_GUARD,P_PINP(B)::B(A),XP(b)
      • S(i);N_GUARD::S(D)
      • S(i);N_GUARD::S(D),XS(i)
      • S(k);N_GUARD::S(J)
      • S(k);N_GUARD::S(J),XS(k)
      • P(c);N_GUARD,N_SPINP(b)::S(D)
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