MESON Chess Problem Database

Problem Display
PID: 185934 (1r3b2/B4QpN/4p1r1/3n4/3Pk1Pp/6R1/2PK4/1BN3n1 w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1958

1r3b2/B4QpN/4p1r1/3n4/3Pk1Pp/6R1/2PK4/1BN3n1

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.Sxg5#
    • 1...Rh6
      • 2.Sg5#
    • 1...Rb3
      • 2.cxb3#
    • 1...Ra8
      • 2.c3#
      • 2.c4#
    • 1...Rc8
      • 2.c3#
      • 2.c4#
    • 1...Rd8
      • 2.c3#
      • 2.c4#
    • 1...Re8
      • 2.c3#
      • 2.c4#
    • 1...Bb4+
      • 2.c3#
    • 1...Se2
      • 2.Qf3#
    • 1...Sf3+
      • 2.Qxf3#
    • 1...Sh3
      • 2.Qf3#
    • 1...e5
      • 2.Qf5#
  • Tries
    • 1.Qxe6+?
      • 1...Kf4
        • 2.Qe5#
      • 1...Rxe6!
  • Keys
    • 1.Se2!
      • threat
        • 2.Qxg6#
      • 1...Bb4+
        • 2.c3#
      • 1...Sf3+
        • 2.Qxf3#
      • 1...Rxg4
        • 2.Qxe6#
      • 1...Sxe2
        • 2.Qf3#
      • 1...hxg3
        • 2.Sxg3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Se3
        • 2.Sc3#
      • 1...Sb4
        • 2.Sc3#
      • 1...Sf4
        • 2.Sc3#
      • 1...Sb6
        • 2.c4#
      • 1...Sf6
        • 2.Qxe6#
      • 1...Sc7
        • 2.Sc3#
      • 1...Se7
        • 2.Sc3#
      • 1...Rg5
        • 2.Sxg5#
      • 1...Rf6
        • 2.Sg5#
      • 1...Rh6
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD::S(J),XR(f)
    • R(f);N_GUARD::S(J)
    • R(h);OGATE::B(A)+P(C),XR(h)
    • B(i);CHECK,S_CUTR(h)::B(A)+P(C)
    • S(a);N_GUARD::QAB1(I)
    • S(a);CHECK,N_GUARD::QAB1(I),XS(a)
    • P(e);N_GUARD::QAB1(I)
  • Tries
    • Try
      • Q(I);CHECK,XP(e)
      • Vars
        • K(b);P-FLIGHT::QAB1(I)
      • Refutation
        • R(f);XQ(I)
  • Actual
    • S(B);
    • Threat
      • QAB(I),XR(f)
    • Vars
      • B(i);CHECK,S_CUTR(h)::B(A)+P(C)
      • S(a);CHECK,N_GUARD::QAB1(I),XS(a)
      • R(f);N_GUARD,XP(G)::QAR2(I),XP(e)
      • S(a);N_GUARD,XS(B)::QAB1(I)
      • P(c);XR(E)::S(B),XP(c)
      • S(d);N_GUARD::S(B),XS(d)
      • S(d);N_GUARD::S(B)
      • S(d);S_CUTR(h)::B(A)+P(C)
      • S(d);S_CUTR(f)::QAR2(I),XP(e)
      • R(f);N_GUARD::S(J),XR(f)
      • R(f);N_GUARD::S(J)
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