MESON Chess Problem Database

Problem Display
PID: 152498 (6NK/3p2p1/1R1B2k1/r5Np/4b2P/7Q/1nr3R1/1B4b1 w - - 0 1)

Kipping, Cyril Stanley

2nd Prize, Chess, 1956

6NK/3p2p1/1R1B2k1/r5Np/4b2P/7Q/1nr3R1/1B4b1

#2

9 + 9

81 Chess 1957
56 The Problemist 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3+?
      • 1...Kf7
        • 2.Qxd7#
      • 1...Rg5
        • 2.Se5#
      • 1...Rxg2!
    • 1.Se7+?
      • 1...Kh6
        • 2.Sf7#
      • 1...Kf6!
    • 1.Bc5+?
      • 1...d6
        • 2.Rxd6#
        • 2.Qe6#
      • 1...Bc6!
  • Keys
    • 1.Qxd7!
      • threat
        • 2.Qe6#
        • 2.Qf7#
      • 1...Rxg5
        • 2.Rxg5#
        • 2.Qe6#
      • 1...Rf2
        • 2.Bf4#
      • 1...Rc7
        • 2.Qe6#
      • 1...Re5
        • 2.Qf7#
      • 1...Rf5
        • 2.Qxg7#
      • 1...Ra7
        • 2.Qe6#
      • 1...Bd4
        • 2.Qf7#
      • 1...Bd5
        • 2.Sf3#
      • 1...Bf5
        • 2.Qe8#
        • 2.Qf7#
        • 2.Qxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(g);S_FLIGHT::QAR2(C),XP(h)
        • R(e);P_SPINR(e)::S(E)
      • Refutation
        • R(c);P_SPINB(d),XR(B)
    • Try
      • S(H);CHECK
      • Vars
        • K(g);P-FLIGHT::S(E)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • B(G);CHECK
      • Refutation
        • B(d);P_SPINB(d),P_SPINR(c)
  • Actual
    • Q(C);XP(h)
    • Threat
      • DUALS(2)
    • Vars
      • R(c);N_GUARD,P_SPINB(d),S_CUTB(a)::R(F)+B(G)
      • R(c);P_SPINB(d)::QAR2(C)
      • R(e);::QAB1(C)
      • R(e);SBLOCK::QAR1(C),XP(i)
      • R(e);::QAR2(C)
      • B(a);::QAB1(C)
      • B(d);P_SPINR(c),S_CUTR(e)::R(B)+S(E)
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