MESON Chess Problem Database

Problem Display
PID: 185736 (8/4bN1p/KQ5B/p2pp3/3Pk1B1/1N1p1rRb/1q1n2n1/5R2 w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1957

8/4bN1p/KQ5B/p2pp3/3Pk1B1/1N1p1rRb/1q1n2n1/5R2

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sxd2#
    • 1...Qa3
      • 2.Sxd2#
    • 1...Qxd4
      • 2.Sxd2#
    • 1...Qb1
      • 2.Sxd2#
    • 1...Rf6
      • 2.Sg5#
    • 1...Bh4
      • 2.Sd6#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Bf6
      • 2.Sd6#
    • 1...Bd8
      • 2.Sd6#
    • 1...exd4
      • 2.Qe6#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Qxe5#
      • 1...Qxd4
        • 2.Sxd2#
      • 1...Bxf6
        • 2.Sd6#
      • 1...exd4
        • 2.Qe5#
        • 2.Qxe7#
        • 2.Qe6#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Sc4
        • 2.Bxf3#
        • 2.Qxf3#
      • 1...Rxf6+!
    • 1.Qg6+?
      • 1...Rf5
        • 2.Qxf5#
      • 1...hxg6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxe5#
      • 1...Qxd4
        • 2.Sxd2#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Rf6
        • 2.Sg5#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Bf6
        • 2.Sd6#
      • 1...Sc4
        • 2.Bxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::S(B),XS(b)
    • Q(a);N_GUARD,XP(D)::S(B),XS(b)
    • R(e);P_PINQ(G),S_CUTB(k)::S(I)
    • B(k);N_GUARD::S(I)
    • B(k);N_GUARD::S(I),XB(k)
    • P(j);OGATEB,XP(D)::QAR2(G)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR1(G),XP(j)
      • Vars
        • Q(a);N_GUARD,SBLOCK,XP(D)::S(B),XS(b)
        • B(k);N_GUARD,XQ(G)::S(I)
        • R(e);N_GUARD::QAB1(G),XR(e)
        • B(k);N_GUARD::S(I),XB(k)
      • Refutation
        • R(e);CHECK,XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • R(e);N_GUARD,P_SPINR(e)::QAB1(G),XR(e)
      • Refutation
        • P(l);XQ(G)
  • Actual
    • Q(G);P_PINP(j)
    • Threat
      • QAR1(G),XP(j)
    • Vars
      • Q(a);N_GUARD,SBLOCK,XP(D)::S(B),XS(b)
      • R(e);N_GUARD::QAB1(G),XR(e)
      • R(e);P_PINQ(G),S_CUTB(k)::S(I)
      • B(k);N_GUARD::S(I),XB(k)
      • B(k);N_GUARD::S(I)
      • S(b);N_GUARD::B(E),XR(e)
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