MESON Chess Problem Database

Problem Display
PID: 186714 (4R1q1/1p2b1p1/1B2b3/1Q3N2/4k1K1/r1p1P3/4P3/3Nn2n w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1960

4R1q1/1p2b1p1/1B2b3/1Q3N2/4k1K1/r1p1P3/4P3/3Nn2n

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sxc3#
    • 1...Ra2
      • 2.Sxc3#
    • 1...Ra4
      • 2.Sxc3#
    • 1...Ra5
      • 2.Sxc3#
    • 1...Ra6
      • 2.Sxc3#
    • 1...Ra7
      • 2.Sxc3#
    • 1...Ra8
      • 2.Sxc3#
    • 1...Ba2
      • 2.Sd6#
    • 1...Bb3
      • 2.Sxc3#
      • 2.Sd6#
    • 1...Bc4
      • 2.Sd6#
    • 1...Bxf5+
      • 2.Qxf5#
    • 1...Bf7
      • 2.Sd6#
    • 1...Sd3
      • 2.exd3#
    • 1...Sf3
      • 2.exf3#
    • 1...Sf2+
      • 2.Sxf2#
    • 1...Sg3
      • 2.Sf2#
  • Tries
    • 1.Qd3+?
      • 1...Ke5
        • 2.Qd4#
      • 1...Sxd3!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Qd4#
      • 1...Bxc4!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qe5#
      • 1...Bxf5+
        • 2.Qxf5#
      • 1...Sf2+
        • 2.Sxf2#
      • 1...Bc5
        • 2.Qxb7#
      • 1...Ra5
        • 2.Sxc3#
      • 1...Bd5
        • 2.Sd6#
      • 1...Bd6
        • 2.Qxb7#
      • 1...Bf6
        • 2.Qxb7#
      • 1...Sd3
        • 2.exd3#
      • 1...Sf3
        • 2.exf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 10
  • Sets
    • R(c);N_GUARD::S(A),XP(d)
    • B(f);N_PINS(F),P_SPINB(h)::S(F)
    • B(f);CHECK,OGATE,P_SPINB(h),XS(F)::QAB1(E),XB(f)
    • S(a);OGATE::P(B),XS(a)
    • S(b);CHECK,N_GUARD::S(A),XS(b)
    • S(b);N_GUARD::S(A)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);P-FLIGHT::QAB1(E)
      • Refutation
        • S(a);XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);P-FLIGHT::QAB1(E)
      • Refutation
        • B(f);N_PINS(F),P_SPINB(h),XQ(E)
  • Actual
    • B(G);
    • Threat
      • QAR1(E)
    • Vars
      • B(f);CHECK,OGATE,P_SPINB(h),XS(F)::QAB1(E),XB(f)
      • S(b);CHECK,N_GUARD::S(A),XS(b)
      • B(h);P_SPINB(f)::QAB(E),XP(g)
      • R(c);N_GUARD::S(A),XP(d)
      • B(f);N_PINS(F),P_SPINB(h)::S(F)
      • S(a);OGATE::P(B),XS(a)
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