MESON Chess Problem Database

Problem Display
PID: 18484 (6Bb/8/5p2/p1NR4/2kBn1bQ/p4rpq/3P1p2/KR3N2 w - - 0 1)

Mansfield, Comins

3rd HM., Chess, 1956

6Bb/8/5p2/p1NR4/2kBn1bQ/p4rpq/3P1p2/KR3N2

#2

9 + 11

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Sxe3#
    • 1...Rf4
      • 2.Se3#
      • 2.d3#
    • 1...Rf5
      • 2.Se3#
      • 2.d3#
    • 1...Sxd2
      • 2.Sxd2#
    • 1...f5
      • 2.Rd6#
      • 2.Rd7#
      • 2.Rd8#
  • Keys
    • 1.Be3!
      • threat
        • 2.Rf5#
      • 1...f5+
        • 2.Re5#
      • 1...Rxe3
        • 2.Sxe3#
      • 1...Sxd2
        • 2.Rd3#
      • 1...Sxc5
        • 2.Rd4#
      • 1...Be6
        • 2.Qxe4#
      • 1...Rf5
        • 2.Re5#
        • 2.Rxf5#
      • 1...Bf5
        • 2.Rxf5#
      • 1...Bh5
        • 2.Qxe4#
      • 1...Bd7
        • 2.Qxe4#
      • 1...Bc8
        • 2.Qxe4#
      • 1...Sc3
        • 2.d3#
      • 1...Sg5
        • 2.Rxg5#
      • 1...Sd6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD::S(C),XR(c)
    • S(g);XP(D)::S(C),XS(g)
  • Actual
    • B(E);
    • Threat
      • B(I)+R(H)
    • Vars
      • P(j);CHECK,S_CUTB(h)::B(I)+R(H)
      • R(c);XB(E)::S(C),XR(c)
      • S(g);P_SPINB(h),XP(D)::B(I)+R(H)
      • S(g);P_SPINB(h),SBLOCK,XS(G)::B(I)+R(H),DCHECK
      • B(h);OGATE,P_SPINS(g)::QAR2(F),XS(g)
      • B(h);P_SPINS(g)::B(I)+R(H),XB(h)
      • S(g);P_SPINB(h),SBLOCK::P(D)
      • S(g);P_SPINB(h)::B(I)+R(H),XS(g)
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