MESON Chess Problem Database

Problem Display
PID: 47472 (4n3/1p1p4/R1p1p3/1P2k1B1/1QB5/1KP3N1/4Pp2/3R4 w - - 0 1)

Rice, John Michael

2nd Comm., Casa-70 JT, 2002

4n3/1p1p4/R1p1p3/1P2k1B1/1QB5/1KP3N1/4Pp2/3R4

#2

10 + 7

56 The Problemist 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Sd6
      • 2.Qc5#
      • 2.Qxd6#
    • 1...Sf6
      • 2.Qd6#
    • 1...Sc7
      • 2.Qd6#
    • 1...Sg7
      • 2.Qd6#
  • Tries
    • 1.Bxe6?
      • threat
        • 2.Qe4#
      • 1...Kxe6
        • 2.Qe7#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sf6
        • 2.Qd6#
      • 1...d5!
    • 1.Rd3?
      • threat
        • 2.Re3#
      • 1...Sd6
        • 2.Qc5#
        • 2.Qxd6#
      • 1...Sf6
        • 2.Qd6#
      • 1...f1S!
    • 1.Rd4?
      • threat
        • 2.Re4#
      • 1...Sd6
        • 2.Qc5#
        • 2.Qxd6#
      • 1...Sf6
        • 2.Bf4#
        • 2.Qd6#
      • 1...d5!
    • 1.Rd5+?
      • 1...exd5
        • 2.Qe7#
      • 1...cxd5!
    • 1.Rxd7?
      • threat
        • 2.Qc5#
      • 1...Sf6
        • 2.Qd6#
      • 1...Sc7
        • 2.Qd6#
      • 1...c5
        • 2.Rxe6#
        • 2.Qxc5#
      • 1...b6!
  • Keys
    • 1.Bd3!
      • threat
        • 2.Qd4#
      • 1...Kd5
        • 2.Qd4#
      • 1...c5
        • 2.Qe4#
      • 1...d5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(g);N_GUARD::QAB1(F)
  • Tries
    • Try
      • B(G);XP(d)
      • Threat
        • QAR1(F)
      • Vars
        • K(b);OGATEB,P-FLIGHT,P_SPINP(c),XB(G)::QAR1(F)
        • S(g);N_GUARD::QAB1(F),XS(g)
        • S(g);N_GUARD::QAB1(F)
      • Refutation
        • P(f);
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • S(g);N_GUARD::QAB1(F)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Refutation
        • P(f);
    • Try
      • R(A);CHECK
      • Vars
        • P(d);S_CUTP(c),XR(A)::QAR2(F)
      • Refutation
        • P(c);XR(A)
    • Try
      • R(A);XP(f)
      • Threat
        • QAR2(F)
      • Vars
        • S(g);N_GUARD::QAB1(F)
      • Refutation
        • P(e);
  • Actual
    • B(G);
    • Threat
      • QAB1(F)
    • Vars
      • K(b);P-FLIGHT::QAR1(F)
      • P(c);::QAR1(F)
      • P(f);SBLOCK::QAB1(F)
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