MESON Chess Problem Database

Problem Display
PID: 10874 (1K6/2nQ4/p1P5/p3PP2/Rn2k3/3N1p2/2N1bBP1/1B2R3 w - - 0 1)

Mansfield, Comins

3rd HM., Probleemblad, 1969

1K6/2nQ4/p1P5/p3PP2/Rn2k3/3N1p2/2N1bBP1/1B2R3

#2

12 + 7

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Tries
    • 1.Se3?
      • 1...Bxd3
        • 2.Sd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Bd1
        • 2.Sxd1#
      • 1...Bf1
        • 2.Sxf1#
      • 1...Sb5
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sa8
        • 2.Qd5#
      • 1...Se8
        • 2.Qd5#
      • 1...fxg2!
  • Keys
    • 1.Sd4!
      • threat
        • 2.gxf3#
      • 1...Sxc6+
        • 2.Sxc6#
      • 1...Sxd3
        • 2.Sxf3#
      • 1...fxg2
        • 2.Rxe2#
      • 1...Sc2
        • 2.Sxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);N_PINB(a)
      • Vars
        • B(a);P_SPINB(a),XS(F)::R(B)+S(C)
        • S(g);N_GUARD::QAB1(K),XS(g)
        • B(a);::R(B)+S(C),XB(a)
        • S(g);N_GUARD::QAB1(K)
      • Refutation
        • P(b);XP(E)
  • Actual
    • S(C);N_PINS(c)
    • Threat
      • P(E),XP(b)
    • Vars
      • S(c);CHECK,XP(J)::R(G)+S(C),XS(c)
      • S(c);P_SPINS(c),XS(F)::R(G)+S(C),XP(b)
      • P(b);N_GUARD,XP(E)::R(B),XB(a)
      • S(c);::R(G)+S(C),XS(c)
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