MESON Chess Problem Database

Problem Display
PID: 17188 (K7/Bn6/1P1pp3/2kbb3/B4NR1/1p1P4/1P1Q4/8 w - - 0 1)

Mansfield, Comins

Grand Magazine (Norway), 1925

K7/Bn6/1P1pp3/2kbb3/B4NR1/1p1P4/1P1Q4/8

#2

9 + 7

3202 Complete Mansfield/I 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sxe6#
      • 2.Qf2#
    • 1...Sa5+
      • 2.b7#
    • 1...Sd8+
      • 2.b7#
  • Tries
    • 1.Qc3+?
      • 1...Bc4
        • 2.Qxc4#
      • 1...Bxc3!
    • 1.d4+?
      • 1...Kc4
        • 2.Qc3#
      • 1...Bxd4!
  • Keys
    • 1.Rg5!
      • 1...Sa5+
        • 2.b7#
      • 1...Sd8+
        • 2.b7#
      • 1...Kd4
        • 2.Qf2#
      • 1...Bxb2
        • 2.Sxe6#
      • 1...Bxf4
        • 2.Qc3#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Bh1
        • 2.Qc3#
      • 1...Bg2
        • 2.Qc3#
      • 1...Bf3
        • 2.Qc3#
      • 1...Bc4
        • 2.d4#
      • 1...Be4
        • 2.Qc3#
      • 1...Bc6
        • 2.Qc3#
      • 1...Bd4
        • 2.Sxe6#
      • 1...Bf6
        • 2.Sxe6#
      • 1...Bg7
        • 2.Sxe6#
      • 1...Bh8
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • S(g);CHECK,OGATE::B(H)+P(G)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAR1(B),XB(c)
      • Refutation
        • B(d);XQ(B)
    • Try
      • P(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • B(d);XP(C)
  • Actual
    • R(F);
    • Vars
      • S(g);CHECK,OGATE::B(H)+P(G)
      • K(b);S_FLIGHT::QAB(B)
      • B(d);P_SPINB(c),XP(A)::S(E),XP(f)
      • B(d);N_GUARD,P_SPINB(c),XS(E)::QAR2(B)
      • B(d);N_GUARD,P_SPINB(c)::QAR2(B),XB(d)
      • B(c);N_GUARD,P_SPINB(d)::QAR2(B)
      • B(c);P_SPINB(d),SBLOCK::P(C)
      • B(d);P_SPINB(c)::S(E),XP(f)
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