MESON Chess Problem Database

Problem Display
PID: 55459 (5R2/2n1k2N/r1Qr1p2/2PnPP2/3R4/q1p1p3/bPP1P2b/3K4 w - - 0 1)

Mansfield, Comins

5th HM., Probleemblad, 1975

5R2/2n1k2N/r1Qr1p2/2PnPP2/3R4/q1p1p3/bPP1P2b/3K4

#2

11 + 11

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb2
      • 2.cxd6#
    • 1...Qb3
      • 2.cxd6#
    • 1...Qa4
      • 2.cxd6#
    • 1...Qa5
      • 2.cxd6#
    • 1...Ra4
      • 2.Qxd6#
    • 1...Ra5
      • 2.Qxd6#
    • 1...Ra7
      • 2.Qxd6#
    • 1...Ra8
      • 2.Qxd6#
    • 1...Bg1
      • 2.exd6#
    • 1...Sb4
      • 2.cxd6#
    • 1...Sf4
      • 2.exd6#
    • 1...Sb6
      • 2.Qxd6#
    • 1...Sb5
      • 2.Qe8#
    • 1...Se6
      • 2.Qe8#
    • 1...Sa8
      • 2.Qe8#
    • 1...Se8
      • 2.Qxe8#
  • Keys
    • 1.Rg4!
      • threat
        • 2.Rg7#
      • 1...Sb4+
        • 2.cxd6#
      • 1...Sf4+
        • 2.exd6#
      • 1...Sb6+
        • 2.Qxd6#
      • 1...Se8
        • 2.Qxe8#
      • 1...Se6
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • Q(c);N_GUARD,XP(B)::P(F),XR(h)
    • Q(c);N_GUARD,P_PINP(C)::P(F),XR(h)
    • Q(c);N_GUARD::P(F),XR(h)
    • R(g);N_GUARD::QAB1(I),XR(h)
    • B(b);N_GUARD::P(G),XR(h)
    • S(f);P_PINR(E),S_CUTQ(c)::P(F),XR(h)
    • S(f);P_PINR(E),S_CUTB(b)::P(G),XR(h)
    • S(f);P_PINR(E),S_CUTR(g)::QAB1(I),XR(h)
    • S(j);N_GUARD::QAR1(I)
    • S(j);N_GUARD::QAR1(I),XS(j)
  • Actual
    • R(E);
    • Threat
      • R(E)
    • Vars
      • S(f);CHECK,S_CUTQ(c)::P(F),XR(h)
      • S(f);CHECK,S_CUTB(b)::P(G),XR(h)
      • S(f);CHECK,S_CUTR(g)::QAB1(I),XR(h)
      • S(j);N_GUARD::QAR1(I),XS(j)
      • S(j);N_GUARD::QAR1(I)
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