MESON Chess Problem Database

Problem Display
PID: 6031 (8/1Bn2N2/2rp2p1/2prB3/2P1k1P1/5R2/Q1Np2P1/K2n4 w - - 0 1)

Mansfield, Comins

1st HM., L'Italia Scacchistica, 1926

8/1Bn2N2/2rp2p1/2prB3/2P1k1P1/5R2/Q1Np2P1/K2n4

#2

10 + 9

3202 Complete Mansfield/I 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Rf4#
    • 1...Rxe5
      • 2.Sxd6#
    • 1...Sb2
      • 2.Re3#
    • 1...Sf2
      • 2.Re3#
    • 1...Sc3
      • 2.Re3#
    • 1...Se3
      • 2.Rxe3#
    • 1...dxe5
      • 2.Sg5#
  • Tries
    • 1.Bxc6?
      • 1...dxe5
        • 2.Sg5#
        • 2.Sd6#
      • 1...Se3
        • 2.Rxe3#
      • 1...Sb5
        • 2.Bxd5#
      • 1...Sb2
        • 2.Re3#
      • 1...Sf2
        • 2.Re3#
      • 1...Sc3
        • 2.Re3#
      • 1...Sa6
        • 2.Bxd5#
      • 1...Se6
        • 2.Bxd5#
      • 1...Sa8
        • 2.Bxd5#
      • 1...Se8
        • 2.Bxd5#
      • 1...g5!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Sd4#
      • 1...Ra6+
        • 2.Sa3#
      • 1...Rxe5
        • 2.Sxd6#
      • 1...dxe5
        • 2.Sg5#
      • 1...Se3
        • 2.Rxe3#
      • 1...Rd3
        • 2.Rf4#
      • 1...Rd4
        • 2.Sxd4#
      • 1...Rb6
        • 2.Sb4#
      • 1...Sb2
        • 2.Re3#
      • 1...Sf2
        • 2.Re3#
      • 1...Sc3
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(e);P_SPINR(f),SBLOCK::R1(E)
    • R(e);N_GUARD,P_SPINR(f),SBLOCK,XB(H)::S(J),XP(g)
    • S(a);N_GUARD::R1(E)
    • S(a);N_GUARD::R1(E),XS(a)
    • P(g);SBLOCK,XB(H)::S(J)
  • Tries
    • Try
      • B(I);P_PINR(e),XR(f)
      • Vars
        • S(a);N_GUARD::R1(E),XS(a)
        • S(i);N_GUARD::B(I),XR(e)
        • S(a);N_GUARD::R1(E)
      • Refutation
        • P(h);
  • Actual
    • Q(B);
    • Threat
      • QAB(B)+S(C)
    • Vars
      • R(f);CHECK,P_SPINR(e)::QAB(B)+S(C)
      • R(e);N_GUARD,P_SPINR(f),SBLOCK,XB(H)::S(J),XP(g)
      • P(g);SBLOCK,XB(H)::S(J)
      • S(a);N_GUARD::R1(E),XS(a)
      • R(e);P_SPINR(f),SBLOCK::R1(E)
      • R(e);P_SPINR(f)::QAB(B)+S(C),XR(e)
      • R(f);P_SPINR(e)::QAB(B)+S(C)
      • S(a);N_GUARD::R1(E)
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