MESON Chess Problem Database

Problem Display
PID: 43074 (1R3Q2/8/2K5/pN1P4/kPN1R3/7p/P6r/3bq1b1 w - - 0 1)

Mansfield, Comins

2nd Comm., Probleemblad, 1970

1R3Q2/8/2K5/pN1P4/kPN1R3/7p/P6r/3bq1b1

#2

9 + 7

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Qf2
      • 2.Sc3#
    • 1...Qc3
      • 2.Sxc3#
    • 1...Qh4
      • 2.Sc3#
    • 1...Qf1
      • 2.Sc3#
    • 1...Qe2
      • 2.Sc3#
    • 1...Qxe4
      • 2.Sc3#
    • 1...Rh1
      • 2.Sb2#
    • 1...Rb2
      • 2.Sxb2#
    • 1...Rd2
      • 2.Sc3#
    • 1...Rf2
      • 2.Sb6#
    • 1...Bc2
      • 2.Sb2#
    • 1...Be2
      • 2.Sb2#
    • 1...Bf2
      • 2.Sb2#
    • 1...Bb6
      • 2.Sxb6#
  • Keys
    • 1.Qf2!
      • threat
        • 2.Sb2#
        • 2.Sb6#
      • 1...Kxb4
        • 2.Se3#
      • 1...Qxf2
        • 2.Sc3#
      • 1...Qxe4
        • 2.Sc3#
      • 1...Rxf2
        • 2.Sb6#
      • 1...Bxf2
        • 2.Sb2#
      • 1...axb4
        • 2.Ra8#
      • 1...Qd2
        • 2.Sb6#
      • 1...Qc3
        • 2.Sxc3#
      • 1...Qe2
        • 2.Sb6#
        • 2.Sc3#
      • 1...Qe3
        • 2.Sb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • Q(b);N_GUARD::S(E)
    • Q(b);N_GUARD,P_PINS(C)::S(E),XQ(b)
    • Q(b);N_GUARD,P_PINP(F),XR(D)::S(E)
    • R(d);N_GUARD::S(C)
    • R(d);N_GUARD::S(C),XR(d)
    • R(d);S_CUTQ(b)::S(E)
    • R(d);S_CUTB(c)::S(C)
    • B(a);S_CUTR(d)::S(C)
    • B(c);S_CUTR(d)::S(C)
    • B(c);N_GUARD::S(C),XB(c)
  • Actual
    • Q(I);
    • Threat
      • DUALS(2)
    • Vars
      • K(f);P-FLIGHT,XP(B)::R(D)+S(C)
      • Q(b);N_GUARD,XQ(I)::S(E)
      • Q(b);N_GUARD,P_PINP(F),XR(D)::S(E)
      • R(d);XQ(I)::S(C)
      • B(c);XQ(I)::S(C)
      • P(g);OGATEB,SBLOCK,XP(B)::R(H)
      • Q(b);::S(C)
      • Q(b);N_GUARD,P_PINS(C)::S(E),XQ(b)
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