MESON Chess Problem Database

Problem Display
PID: 16532 (2n5/1qpP1P2/R1nbk3/6B1/5R2/3NN2K/b7/5Q2 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1941

2n5/1qpP1P2/R1nbk3/6B1/5R2/3NN2K/b7/5Q2

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Qb2
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Qb3
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Qb4
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Qb5
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Qb6
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Qa7
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Sb4
      • 2.f8S#
    • 1...Sd4
      • 2.f8S#
    • 1...Sa5
      • 2.f8S#
    • 1...Se5
      • 2.Sc5#
      • 2.f8S#
    • 1...S6a7
      • 2.f8S#
    • 1...S6e7
      • 2.f8S#
    • 1...Sb8
      • 2.f8S#
    • 1...Sd8
      • 2.f8S#
    • 1...S8e7
      • 2.f8S#
  • Tries
    • 1.Sc5+?
      • 1...Ke5
        • 2.Bf6#
        • 2.Re4#
      • 1...Bxc5!
    • 1.d8Q?
      • threat
        • 2.Rf6#
      • 1...Sxd8
        • 2.f8S#
      • 1...Qb2
        • 2.Qxc8#
      • 1...Be5
        • 2.Sc5#
        • 2.f8S#
      • 1...Be7
        • 2.Re4#
      • 1...Bxf4!
    • 1.d8S+?
      • 1...Sxd8
        • 2.f8S#
      • 1...Kd7!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Qf5#
      • 1...Kxd7
        • 2.Sc5#
      • 1...Sxd4
        • 2.f8S#
      • 1...Qb5
        • 2.dxc8Q#
        • 2.dxc8B#
      • 1...Bf4
        • 2.d8S#
      • 1...S6e7
        • 2.f8S#
      • 1...S8e7
        • 2.f8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(e);N_GUARD::PXS(g)=Q
    • S(b);P_SPINB(c)::P=S
    • S(g);S_CUTB(c)::P=S
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • B(c);P_SPINS(b),XS(B)
    • Try
      • P(H);
      • Threat
        • R1(E)
      • Vars
        • S(b);P_SPINB(c),XQ(H)::P=S
        • Q(e);N_GUARD::QAB(H),XS(g)
        • B(c);N_GUARD,P_SPINS(b)::R(E)
      • Refutation
        • B(c);P_SPINS(b),XR(E)
    • Try
      • P(H);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINB(c),XS(H)::P=S
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(E);
    • Threat
      • QAB1(A)
    • Vars
      • K(d);P_SPINB(c),S_FLIGHT,XP(H)::S(B)
      • S(b);P_SPINB(c),XR(E)::P=S
      • Q(e);N_GUARD::PXS(g)=Q
      • B(c);P_SPINS(b)::P=S
      • S(b);P_SPINB(c)::P=S
      • S(g);S_CUTB(c)::P=S
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