MESON Chess Problem Database

Problem Display
PID: 10453 (2rb1Q1K/4p2b/r1B5/p2Np3/3pkB2/R7/1p6/1q6 w - - 0 1)

Mansfield, Comins

Sunday Times, 1964

2rb1Q1K/4p2b/r1B5/p2Np3/3pkB2/R7/1p6/1q6

#2

6 + 11

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Sc3#
    • 1...Ra7
      • 2.Sc7#
    • 1...Raa8
      • 2.Sc7#
    • 1...Rca8
      • 2.Sb6#
    • 1...Rb8
      • 2.Sb6#
    • 1...Bb6
      • 2.Sc7#
    • 1...Bc7
      • 2.Sb6#
    • 1...exf4
      • 2.Qxf4#
  • Keys
    • 1.Bc1!
      • threat
        • 2.Qf3#
      • 1...d3
        • 2.Ra4#
      • 1...Qd3
        • 2.Sc3#
      • 1...Bf5
        • 2.Sf6#
      • 1...Bb6
        • 2.Sc7#
      • 1...Bc7
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(a);SBLOCK::B(D)+S(C),DCHECK
    • R(g);N_GUARD::B(D)+S(C)
    • R(j);N_GUARD::B(D)+S(C)
    • B(k);P_PINQ(E),S_CUTR(g)::B(D)+S(C)
    • B(k);P_PINQ(E),S_CUTR(j)::B(D)+S(C)
    • P(f);OGATE,XB(B)::QAR1(E),XP(f)
  • Actual
    • B(B);
    • Threat
      • QAB1(E)
    • Vars
      • P(c);OGATEB,SBLOCK::R(A)
      • Q(a);SBLOCK::B(D)+S(C),DCHECK
      • B(i);SBLOCK::B(D)+S(C),DCHECK
      • B(k);P_PINQ(E),S_CUTR(g)::B(D)+S(C)
      • B(k);P_PINQ(E),S_CUTR(j)::B(D)+S(C)
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