MESON Chess Problem Database

Problem Display
PID: 17336 (5b2/7B/Q1np3R/3k4/KPN5/n3P3/8/8 w - - 0 1)

Mansfield, Comins

3rd Prize, Chess World (Meredith Ty.), 1946

5b2/7B/Q1np3R/3k4/KPN5/n3P3/8/8

#2

7 + 5

3310 2345 Chess Problems 1997
3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Bg7
      • 2.Rxd6#
    • 1...Sb1
      • 2.Qb5#
    • 1...Sc2
      • 2.Qb5#
    • 1...Sxc4
      • 2.Qb5#
    • 1...Sb5
      • 2.Qxb5#
    • 1...Sd4
      • 2.e4#
    • 1...Se7
      • 2.Rxd6#
  • Tries
    • 1.Qb7?
      • threat
        • 2.Qf7#
      • 1...Kxc4
        • 2.Qxc6#
      • 1...Sxc4
        • 2.Qb5#
      • 1...Be7!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Qe6#
      • 1...Kxc4
        • 2.Qxc6#
      • 1...Bxh6
        • 2.Qg8#
      • 1...Sxb4
        • 2.Rh5#
      • 1...Sd4
        • 2.e4#
      • 1...Sa5
        • 2.Rh5#
      • 1...Se5
        • 2.Sb6#
      • 1...Sa7
        • 2.Rh5#
      • 1...Se7
        • 2.Rxd6#
      • 1...Sb8
        • 2.Rh5#
      • 1...Sd8
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 5
  • Sets
    • B(e);N_GUARD::R1(F),XP(d)
    • S(a);N_GUARD::QAR2(E)
    • S(a);N_GUARD,XS(D)::QAR2(E)
    • S(a);N_GUARD::QAR2(E),XS(a)
    • S(c);SBLOCK::P(A)
    • S(c);S_CUTB(e)::R1(F),XP(d)
  • Tries
    • Try
      • Q(E);P_PINS(c)
      • Threat
        • QAB(E)
      • Vars
        • K(b);N_SPINS(c),S_FLIGHT,XS(D)::QAR2(E),XS(c)
        • S(a);N_GUARD,XS(D)::QAR2(E)
      • Refutation
        • B(e);
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
    • Vars
      • K(b);P_SPINS(c),S_FLIGHT,XS(D)::QAR2(E),XS(c)
      • B(e);OGATE,XR(F)::QAB(E)
      • S(c);N_GUARD,XP(C)::R(F)
      • S(c);SBLOCK::P(A)
      • S(c);N_GUARD::R(F)
      • S(c);SBLOCK::S(D)
      • S(c);S_CUTB(e)::R1(F),XP(d)
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