MESON Chess Problem Database

Problem Display
PID: 151676 (8/1B4r1/K1R1p3/1pN1npr1/p4B2/2P2k1N/bpQ5/q5Rn w - - 0 1)

Harley, Brian

Chess Amateur (The), 1912

8/1B4r1/K1R1p3/1pN1npr1/p4B2/2P2k1N/bpQ5/q5Rn

#2

9 + 12

15290 Harley Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Qxd1#
    • 1...Bb1
      • 2.Qd1#
    • 1...Sf2
      • 2.Qxf2#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sc4
      • 2.Rc7#
    • 1...Sg4
      • 2.Qg2#
    • 1...Sxc6
      • 2.Qd3#
    • 1...Sg6
      • 2.Qd3#
    • 1...Sd7
      • 2.Qd3#
    • 1...Sf7
      • 2.Qd3#
    • 1...b1S
      • 2.Qd1#
    • 1...b1B
      • 2.Qd1#
  • Tries
    • 1.Sxg5+?
      • 1...Kxf4
        • 2.Qd2#
      • 1...Rxg5!
    • 1.Rxe6+?
      • 1...Bd5
        • 2.Bxd5#
      • 1...Sc6
        • 2.Re3#
        • 2.Qd3#
        • 2.Qe2#
      • 1...Rxb7!
    • 1.Rc7+?
      • 1...Sc6
        • 2.Qd3#
      • 1...Bd5!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sxe5#
      • 1...Ke4
        • 2.Rc4#
      • 1...Sxd3
        • 2.Qxd3#
      • 1...Sxc6
        • 2.Se5#
      • 1...Qe1
        • 2.Sxe1#
      • 1...Sc4
        • 2.Rc7#
      • 1...Sg4
        • 2.Qg2#
      • 1...Sg6
        • 2.Sxg5#
      • 1...Sd7
        • 2.Rc4#
      • 1...Sf7
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(a);N_GUARD::QAB(B),XQ(a)
    • B(c);S_CUTQ(a)::QAB(B)
    • S(b);N_GUARD::QAR1(B),XS(b)
    • S(h);N_GUARD::QAR2(B),XS(h)
    • S(h);N_GUARD,S_CUTB(c)::B(I)+R(H)
    • S(h);S_CUTR(j)::QAB1(B)
    • S(h);N_GUARD,P_SPINS(h),XR(H)::QAR2(B)
    • S(h);N_GUARD::QAR2(B)
    • P(d);S_CUTQ(a)::QAB(B)
  • Tries
    • Try
      • S(D);CHECK,XR(j)
      • Vars
        • K(e);P-FLIGHT,XB(E)::QAB(B)
      • Refutation
        • R(l);XS(D)
    • Try
      • R(H);CHECK,XP(k)
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::B(I),XB(c)
      • Refutation
        • R(l);XB(I)
    • Try
      • R(H);CHECK
      • Vars
        • S(h);P_SPINS(h)::QAR2(B)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • S(F);
    • Threat
      • S(F),XS(h)
    • Vars
      • K(e);S_FLIGHT::B(I)+R(H),DCHECK
      • S(h);OGATE,XS(F)::QAR2(B),XS(h)
      • S(h);P_SPINS(h),XR(H)::S(F)
      • Q(a);N_GUARD::S(F),XQ(a)
      • S(h);N_GUARD,S_CUTB(c)::B(I)+R(H)
      • S(h);S_CUTR(j)::QAB1(B)
      • S(h);S_CUTR(l)::S(D),XR(j)
      • S(h);N_GUARD,S_CUTR(l)::B(I)+R(H)
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