MESON Chess Problem Database

Problem Display
PID: 81608 (2Q3n1/5p2/Bp1pp3/1R2P1N1/3k1p2/r2p1p2/p2PP3/1bb1R2K w - - 0 1)

Rice, John Michael

Comm., The Problemist, 2008

2Q3n1/5p2/Bp1pp3/1R2P1N1/3k1p2/r2p1p2/p2PP3/1bb1R2K

#2

9 + 13

56 The Problemist 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qxc3#
    • 1...Ra4
      • 2.Qc3#
    • 1...Ra5
      • 2.Qc3#
    • 1...Rxa6
      • 2.Qc3#
  • Tries
    • 1.exf3?
      • threat
        • 2.Re4#
      • 1...d5
        • 2.Rb4#
      • 1...f5
        • 2.Sxe6#
      • 1...Sf6!
    • 1.e4?
      • threat
        • 2.Sxf3#
      • 1...f2
        • 2.Sf3#
      • 1...fxe4 ep!
  • Keys
    • 1.exd3!
      • threat
        • 2.Qc4#
      • 1...Kxd3
        • 2.Rd5#
      • 1...Rxd3
        • 2.Re4#
      • 1...Bxd3
        • 2.Sxf3#
      • 1...Rc3
        • 2.Qxc3#
      • 1...Ra4
        • 2.Qc3#
      • 1...d5
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(d);N_GUARD::QAB1(I),XR(d)
    • R(d);N_GUARD::QAB1(I)
    • R(d);N_GUARD,XB(H)::QAB1(I)
  • Tries
    • Try
      • P(D);XP(f)
      • Threat
        • R1(A)
      • Vars
        • P(j);SBLOCK::R(E)
        • P(l);N_GUARD::S(G),XP(k)
      • Refutation
        • S(m);
    • Try
      • P(D);
      • Threat
        • S(G),XP(f)
      • Vars
        • P(f);::S(G)
      • Refutation
        • P(h);EP,XP(D)
  • Actual
    • P(D);XP(e)
    • Threat
      • QAR1(I)
    • Vars
      • K(g);P-FLIGHT,XP(D)::B(H)+R(E),DCHECK
      • R(d);SBLOCK,XP(D)::R1(A)
      • B(a);SBLOCK,XP(D)::S(G),XP(f)
      • R(d);N_GUARD::QAB1(I),XR(d)
      • R(d);N_GUARD::QAB1(I)
      • P(j);SBLOCK::R(E)
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