MESON Chess Problem Database

Problem Display
PID: 185923 (3q4/B4Q2/r3r1p1/p2n4/3NkP2/3p4/B2KN3/7n w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1957

3q4/B4Q2/r3r1p1/p2n4/3NkP2/3p4/B2KN3/7n

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa7
      • 2.Qxe6#
    • 1...Sf2
      • 2.Sg3#
    • 1...Sg3
      • 2.Sxg3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Se3
      • 2.Sc3#
    • 1...Sb4
      • 2.Sc3#
    • 1...Sxf4
      • 2.Qxf4#
    • 1...Sb6
      • 2.Qxe6#
    • 1...Sf6
      • 2.Qxg6#
    • 1...Sc7
      • 2.Sc3#
    • 1...Se7
      • 2.Sc3#
    • 1...dxe2
      • 2.Bb1#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Bxd5+?
      • 1...Qxd5
        • 2.Sc3#
      • 1...Kxd5!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Bxd3#
      • 1...Sxf4
        • 2.Qxf4#
      • 1...dxe2
        • 2.Bd3#
      • 1...Sf2
        • 2.Sg3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Se3
        • 2.Sc3#
      • 1...Sb4
        • 2.Sc3#
      • 1...Sb6
        • 2.Qxe6#
      • 1...Sf6
        • 2.Qxg6#
      • 1...Sc7
        • 2.Sc3#
      • 1...Se7
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD,XB(F)::QAR2(G),XR(g)
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
    • S(e);N_GUARD::S(C),XS(e)
    • S(e);N_GUARD::S(C)
    • S(e);OGATE,XP(E)::QAR1(G),XS(e)
    • S(e);S_CUTR(f)::QAR2(G),XR(g)
    • S(e);S_CUTR(g)::QAB(G),XP(h)
    • P(b);OGATEB,XS(C)::B(A)
    • P(h);N_GUARD::QAB1(G)
  • Tries
    • Try
      • B(A);CHECK,XS(e)
      • Vars
        • Q(i);XB(A)::S(C)
      • Refutation
        • K(c);P_SPINR(g),S_FLIGHT,XB(A)
  • Actual
    • B(A);
    • Threat
      • B(A),XP(b)
    • Vars
      • S(e);OGATE,XP(E)::QAR1(G),XS(e)
      • P(b);XS(C)::B(A)
      • S(a);N_GUARD::S(C)
      • S(e);N_GUARD::S(C),XS(e)
      • S(e);N_GUARD::S(C)
      • S(e);S_CUTR(f)::QAR2(G),XR(g)
      • S(e);S_CUTR(g)::QAB(G),XP(h)
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