MESON Chess Problem Database

Problem Display
PID: 9883 (8/5K2/p1p2P2/p1n5/p1k1P3/P1BN3Q/1nR5/NR6 w - - 0 1)

Mansfield, Comins

L'Italia Scacchistica, 1960

8/5K2/p1p2P2/p1n5/p1k1P3/P1BN3Q/1nR5/NR6

#2

10 + 7

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Se5#
    • 1...Sbxd3
      • 2.Be5#
  • Tries
    • 1.Bd2+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kb5!
    • 1.Bxa5+?
      • 1...Kb5
        • 2.Rxc5#
      • 1...Kd4!
    • 1.Qf5?
      • 1...Kb5
        • 2.Qxc5#
      • 1...Sbxd3
        • 2.Be5#
      • 1...Scxd3
        • 2.Bxb2#
      • 1...Sxe4
        • 2.Sxb2#
      • 1...Sd1
        • 2.Se5#
      • 1...Sb3
        • 2.Sxb2#
      • 1...Se6
        • 2.Sxb2#
      • 1...Sb7
        • 2.Sxb2#
      • 1...Sd7
        • 2.Sxb2#
      • 1...Kxd3!
  • Keys
    • 1.Qh5!
      • 1...Kxd3
        • 2.Qe2#
      • 1...Kb5
        • 2.Qxc5#
      • 1...Sbxd3
        • 2.Be5#
      • 1...Scxd3
        • 2.Bxb2#
      • 1...Sxe4
        • 2.Sxb2#
      • 1...Sd1
        • 2.Se5#
      • 1...Sb3
        • 2.Sxb2#
      • 1...Se6
        • 2.Sxb2#
      • 1...Sb7
        • 2.Sxb2#
      • 1...Sd7
        • 2.Sxb2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(a);::S(F)
    • S(a);XS(F)::R(C)+B(E)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(G)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • B(E);CHECK,XP(d)
      • Vars
        • K(c);OGATE,P_SPINS(a),S_FLIGHT::R1(C),XS(e)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(c);P_SPINS(a),S_FLIGHT::QAR1(G),XS(e)
        • S(a);SBLOCK,XS(F)::R(C)+B(E)
        • S(e);SBLOCK,XS(F)::R(C)+B(E),XS(a)
        • S(e);XP(H)::S(F),XS(a)
        • S(a);::S(F)
        • S(e);::S(F),XS(a)
      • Refutation
        • K(c);S_FLIGHT,XS(F)
  • Actual
    • Q(G);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB1(G)
      • K(c);P_SPINS(a),S_FLIGHT::QAR1(G),XS(e)
      • S(a);SBLOCK,XS(F)::R(C)+B(E)
      • S(e);SBLOCK,XS(F)::R(C)+B(E),XS(a)
      • S(e);XP(H)::S(F),XS(a)
      • S(a);::S(F)
      • S(e);::S(F),XS(a)
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