MESON Chess Problem Database

Problem Display
PID: 174453 (b1k3q1/1R2Bp2/PQ2P1p1/1R2nN2/6p1/8/2rr3b/6nK w - - 0 1)

Rice, John Michael

Comm., Busmen's Chess Review, 1971-1972

b1k3q1/1R2Bp2/PQ2P1p1/1R2nN2/6p1/8/2rr3b/6nK

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Qc7#
    • 1...Rb2
      • 2.Qc7#
    • 1...Rc6
      • 2.Rb8#
    • 1...Rc7
      • 2.Qxc7#
    • 1...Re2
      • 2.Sd6#
    • 1...Rf2
      • 2.Sd6#
    • 1...Rg2
      • 2.Sd6#
      • 2.Rb8#
    • 1...Rd5
      • 2.Rb8#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Bxb7+
      • 2.Qxb7#
    • 1...Sgf3
      • 2.Rb8#
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qb8#
      • 1...Bxb7+
        • 2.axb7#
      • 1...Rxd6
        • 2.Sxd6#
      • 1...Rc7
        • 2.Qxc7#
      • 1...Sd3
        • 2.Qd7#
      • 1...Sef3
        • 2.Rb8#
      • 1...Sc4
        • 2.Rc5#
      • 1...Sc6
        • 2.Rc7#
      • 1...Sd7
        • 2.exd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • R(b);N_GUARD::QAR1(E)
    • R(b);N_PINR(G)::R1(G)
    • R(b);N_GUARD::QAR1(E),XR(b)
    • R(c);N_GUARD::S(C)
    • R(c);N_PINR(G)::R1(G)
    • R(c);N_GUARD::S(C),XR(c)
    • B(i);CHECK,OGATE,XR(G)::QAB1(E),XB(i)
    • S(a);N_PINR(G)::R1(G)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E)
    • Vars
      • B(i);CHECK,OGATE,XR(G)::P(D),XB(i)
      • R(c);XQ(E)::S(C),XR(c)
      • R(b);N_GUARD::QAR1(E),XR(b)
      • S(f);N_GUARD,S_CUTR(c)::QAB1(E)
      • S(f);N_PINR(G)::R1(G)
      • S(f);N_GUARD,S_CUTR(b)::R(B)
      • S(f);OGATE::P(F),XS(f)
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