MESON Chess Problem Database

Problem Display
PID: 34445 (1rn1n3/5Qp1/BpkBrp2/1N6/1P4q1/1N1Rp3/K2p4/7b w - - 0 1)

Shire, David J

The Problemist, 1996

1rn1n3/5Qp1/BpkBrp2/1N6/1P4q1/1N1Rp3/K2p4/7b

#2

8 + 12

3256 David Shire Selected Chess Problems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rb7
      • 2.Qxb7#
    • 1...Ra8
      • 2.Qb7#
    • 1...Scxd6
      • 2.Sa7#
    • 1...Sa7
      • 2.Sxa7#
    • 1...Sexd6
      • 2.Qc7#
    • 1...Sc7
      • 2.Qxc7#
  • Tries
    • 1.Bxb8?
      • threat
        • 2.Qb7#
        • 2.Qd7#
      • 1...Qd4
        • 2.Qb7#
      • 1...Re5
        • 2.Qb7#
      • 1...Re4
        • 2.Qd5#
        • 2.Qb7#
      • 1...Rd6
        • 2.Qb7#
      • 1...Bd5
        • 2.Qb7#
      • 1...Scd6
        • 2.Sa7#
      • 1...Se7
        • 2.Sa7#
        • 2.Qxe8#
      • 1...Sed6
        • 2.Qc7#
      • 1...Sc7
        • 2.Qxc7#
        • 2.Qd7#
      • 1...Re7!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Qd7#
      • 1...Re5
        • 2.S3d4#
      • 1...Re4
        • 2.Qd5#
      • 1...Rd6
        • 2.Rc3#
      • 1...Re7
        • 2.Qc4#
      • 1...Rb7
        • 2.Qxb7#
      • 1...Bd5
        • 2.Sd4#
      • 1...Scd6
        • 2.Sa7#
      • 1...Se7
        • 2.Sa7#
      • 1...Sed6
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • R(j);N_GUARD::QAB1(H),XR(j)
    • R(j);N_GUARD,P_PINB(F)::QAB1(H)
    • S(k);N_GUARD,XB(G)::S(E)
    • S(k);N_GUARD::S(E),XS(k)
    • S(l);N_GUARD,XB(G)::QAR1(H)
    • S(l);N_GUARD::QAR1(H),XS(l)
  • Tries
    • Try
      • B(G);XR(j)
      • Threat
        • DUALS(2)
      • Vars
        • Q(d);::QAB1(H)
        • R(g);::QAB1(H)
        • B(a);P_PINS(B)::QAB1(H)
        • S(k);N_GUARD::S(E)
        • S(l);N_GUARD::QAR1(H)
      • Refutation
        • R(g);
  • Actual
    • B(G);
    • Threat
      • QAB1(H)
    • Vars
      • R(g);::S(B)
      • R(g);OGATE::QAB1(H)
      • R(g);::R(C)
      • R(g);OGATE::QAR2(H)
      • R(j);N_GUARD::QAB1(H),XR(j)
      • B(a);P_PINS(B),SBLOCK::S(E)
      • S(k);N_GUARD::S(E)
      • S(l);N_GUARD::QAR1(H)
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