MESON Chess Problem Database

Problem Display
PID: 151737 (4R3/2Np3K/6NB/Rn1r1kP1/5pp1/4pr2/1bp1n3/Q3qB2 w - - 0 1)

Harley, Brian

Pittsburgh Gazette-Times, 1915

(First published on Sun Dec 5 1915)

4R3/2Np3K/6NB/Rn1r1kP1/5pp1/4pr2/1bp1n3/Q3qB2

#2

9 + 12

15290 Harley Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qd2
      • 2.Sh4#
    • 1...Qc3
      • 2.Sh4#
    • 1...Qb4
      • 2.Sh4#
    • 1...Qh4
      • 2.Sxh4#
    • 1...Qxa5
      • 2.Sh4#
    • 1...Qxa1
      • 2.Sh4#
    • 1...Qb1
      • 2.Sh4#
    • 1...Qc1
      • 2.Sh4#
    • 1...Qd1
      • 2.Sh4#
    • 1...Qxf1
      • 2.Sh4#
    • 1...Rf2
      • 2.Sh4#
    • 1...Rg3
      • 2.Sh4#
    • 1...Rd4
      • 2.Re5#
    • 1...Bc1
      • 2.Qf6#
    • 1...Ba3
      • 2.Qf6#
    • 1...Bf6
      • 2.Qxf6#
    • 1...Sg3
      • 2.Sh4#
    • 1...Sed4
      • 2.Bd3#
    • 1...Sbd4
      • 2.Rxd5#
    • 1...g3
      • 2.Bh3#
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qe4#
      • 1...g3
        • 2.Bh3#
      • 1...Qb4
        • 2.Sh4#
      • 1...Rd4
        • 2.Re5#
      • 1...Re5
        • 2.Rf8#
      • 1...Bd4
        • 2.Qxc2#
      • 1...Be5
        • 2.Se7#
      • 1...Sec3
        • 2.Rf8#
      • 1...Sg3
        • 2.Sh4#
      • 1...Sed4
        • 2.Bd3#
      • 1...Sbc3
        • 2.Rf8#
        • 2.Qxd7#
      • 1...Sbd4
        • 2.Rxd5#
      • 1...Sd6
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 14
  • Sets
    • Q(a);N_GUARD::S(E)
    • Q(a);N_GUARD,P_PINB(F)::S(E),XQ(a)
    • Q(a);N_GUARD,XR(C)::S(E)
    • Q(a);N_GUARD,XQ(A)::S(E)
    • Q(a);N_GUARD,XB(B)::S(E)
    • R(f);S_CUTQ(a)::S(E)
    • R(j);N_GUARD,P_SPINS(i),S_CUTB(b)::R1(I)
    • B(b);OGATE::QAR1(A)
    • B(b);OGATE::QAR1(A),XB(b)
    • S(d);S_CUTQ(a)::S(E)
    • S(d);OGATE::B(B)
    • S(i);OGATE,P_SPINR(j)::R(C),XR(j)
    • P(h);OGATEB::B(B)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • P(h);OGATEB::B(B)
      • Q(a);N_GUARD::S(E)
      • R(j);N_GUARD,P_SPINS(i),S_CUTB(b)::R1(I)
      • R(j);S_CUTB(b)::R(I)
      • B(b);S_CUTR(j)::QAB(A),XP(c)
      • B(b);SBLOCK::S(E)
      • S(d);S_CUTB(b)::R(I)
      • S(d);S_CUTQ(a)::S(E)
      • S(d);OGATE::B(B)
      • S(i);OGATE,P_SPINR(j)::R(C),XR(j)
      • S(i);OGATE,P_SPINR(j)::QAB(A),XP(l)
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