MESON Chess Problem Database

Problem Display
PID: 72939 (2R5/3NK2B/3p4/1p1p4/3k4/8/4b2b/1nQ5 w - - 0 1)

Rothwell, Stephen

Neue Osnabrucker Zeitung, 1993

2R5/3NK2B/3p4/1p1p4/3k4/8/4b2b/1nQ5

#2

5 + 7

6113 Problemschach-Jahrbuch (1993) 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qf4#
      • 2.Qxg1#
    • 1...Bf4
      • 2.Qxf4#
    • 1...Be5
      • 2.Qg1#
    • 1...Sd2
      • 2.Qc3#
    • 1...Sa3
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
  • Tries
    • 1.Sb8?
      • threat
        • 2.Sc6#
      • 1...Ke5
        • 2.Sc6#
        • 2.Qe3#
      • 1...Sd2
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Bc4!
    • 1.Qb2+?
      • 1...Sc3
        • 2.Qxc3#
      • 1...Ke3!
    • 1.Qd2+?
      • 1...Bd3
        • 2.Qf2#
        • 2.Qxd3#
      • 1...Sxd2!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sc6#
      • 1...Kxe5
        • 2.Qe3#
      • 1...Bxe5
        • 2.Qg1#
      • 1...dxe5
        • 2.Qc5#
      • 1...Sd2
        • 2.Qc3#
      • 1...Bc4
        • 2.Sf3#
      • 1...Sc3
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(c);N_GUARD::QAR2(A),XB(c)
    • B(c);N_GUARD::QAB(A)
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XS(a)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(a);N_GUARD::QAB1(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
      • Refutation
        • B(b);
    • Try
      • Q(A);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • S(a);XQ(A)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • K(d);S_FLIGHT,XS(B)::QAR2(A)
      • B(c);N_GUARD,SBLOCK,XS(B)::QAB(A)
      • P(g);N_GUARD,SBLOCK,XS(B)::QAB1(A)
      • S(a);N_GUARD::QAB1(A)
      • B(b);N_GUARD::S(B)
      • S(a);N_GUARD::QAB1(A),XS(a)
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