MESON Chess Problem Database

Problem Display
PID: 1016 (8/p7/K6Q/4P3/1B3r1p/1p2k2n/2PNNp2/5B2 w - - 0 1)

Rice, John Michael

The Problemist Supplement, 1996

8/p7/K6Q/4P3/1B3r1p/1p2k2n/2PNNp2/5B2

#2

8 + 7

5174 Chess Problem Spectrum 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Sg1
      • 2.Qxf4#
  • Tries
    • 1.Qb6+?
      • 1...Rd4
        • 2.Qxd4#
      • 1...axb6!
    • 1.Qd6?
      • threat
        • 2.Qd3#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Rf6
        • 2.Bc5#
      • 1...bxc2!
    • 1.Qe6?
      • threat
        • 2.Qxb3#
      • 1...bxc2
        • 2.Qb3#
      • 1...Rc4
        • 2.Qxh3#
      • 1...Rd4
        • 2.Qxh3#
      • 1...Rf6
        • 2.exf6#
      • 1...b2
        • 2.Qb3#
      • 1...Rxb4!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qc3#
      • 1...Rc4
        • 2.Sxc4#
        • 2.Qf3#
      • 1...Rd4
        • 2.Qf3#
      • 1...Rf6
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(d);N_GUARD::QAB1(H),XR(e)
  • Tries
    • Try
      • Q(H);CHECK,N_PINR(e)
      • Vars
        • R(e);N_GUARD,P_SPINR(e)::QAB1(H),XR(e)
      • Refutation
        • P(g);XQ(H)
    • Try
      • Q(H);N_PINR(e)
      • Threat
        • QAR1(H)
      • Vars
        • R(e);N_GUARD::QAB1(H),XR(e)
        • R(e);N_GUARD,P_PINQ(H)::B(E)
      • Refutation
        • P(b);XP(B)
    • Try
      • Q(H);N_PINR(e)
      • Threat
        • QAR(H),XP(b)
      • Vars
        • P(b);XP(B)::QAR(H)
        • R(e);N_GUARD::QAR(H),XS(d)
        • R(e);OGATE,P_PINQ(H)::QAR(H)+P(F),XR(e)
        • P(b);::QAR(H)
      • Refutation
        • R(e);XB(E)
  • Actual
    • Q(H);N_PINR(e)
    • Threat
      • QAR2(H)
    • Vars
      • R(e);N_GUARD::QAR1(H)
      • R(e);N_GUARD,P_PINQ(H)::S(C)
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