MESON Chess Problem Database

Problem Display
PID: 184301 (8/3p1p2/4b2r/3P1PB1/3Pk2n/2P1N1Rp/Qpp5/5B1K w - - 0 1)

Cooper, Arthur Richard

British Chess Magazine, 1916

8/3p1p2/4b2r/3P1PB1/3Pk2n/2P1N1Rp/Qpp5/5B1K

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd5
      • 2.Qxd5#
    • 1...Sf3
      • 2.Rg4#
    • 1...b1S
      • 2.Qxc2#
    • 1...b1R
      • 2.Qxc2#
    • 1...c1B
      • 2.Qb1#
  • Tries
    • 1.Qc4?
      • threat
        • 2.Bd3#
        • 2.Qd3#
      • 1...b1Q
        • 2.Qd3#
      • 1...b1R
        • 2.Qd3#
      • 1...c1Q
        • 2.Qd3#
      • 1...c1R
        • 2.Qd3#
      • 1...c1S!
    • 1.Qa6?
      • threat
        • 2.Bd3#
        • 2.Qd3#
      • 1...b1Q
        • 2.Qd3#
      • 1...b1R
        • 2.Qd3#
      • 1...c1Q
        • 2.Qd3#
      • 1...c1R
        • 2.Qd3#
      • 1...c1S!
    • 1.dxe6?
      • threat
        • 2.Qd5#
      • 1...dxe6
        • 2.Qa8#
      • 1...d5
        • 2.Qxd5#
      • 1...fxe6!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sd6#
      • 1...Kxd5
        • 2.Qa8#
      • 1...Kxf5
        • 2.Bd3#
      • 1...Bxd5
        • 2.Bd3#
      • 1...Bxf5
        • 2.Sd2#
      • 1...Sxf5
        • 2.Sd2#
      • 1...d6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • B(f);OGATE,XP(H)::QAB1(C),XB(f)
    • S(e);SBLOCK::R(F)
    • P(a);OGATE::QAB(C),XP(b)
    • P(a);OGATE,P_PINB(A)::QAB(C),XP(b)
    • P(b);OGATEB::QAB(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);P_PINB(A)::QAB1(C)
        • P(b);P_PINB(A)::QAB1(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);P_PINB(A)::QAB1(C)
        • P(b);P_PINB(A)::QAB1(C)
      • Refutation
        • P(b);
    • Try
      • P(H);XB(f)
      • Threat
        • QAB1(C)
      • Vars
        • P(h);N_GUARD,XP(H)::QAB(C)
        • P(h);::QAB1(C),XP(h)
      • Refutation
        • P(i);XP(H)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XP(H)::QAB(C)
      • K(d);S_FLIGHT,XP(I)::B(A)
      • B(f);SBLOCK,XP(H)::B(A)
      • B(f);SBLOCK,XP(I)::S(E)
      • S(e);SBLOCK,XP(I)::S(E)
      • P(h);::S(E),XP(h)
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