MESON Chess Problem Database

Problem Display
PID: 6002 (2n2R2/6pq/6kp/3BpN1n/7P/4Q3/4prrb/2Kb4 w - - 0 1)

Mansfield, Comins

Daily News, 1926

2n2R2/6pq/6kp/3BpN1n/7P/4Q3/4prrb/2Kb4

#2

6 + 12

3202 Complete Mansfield/I 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Se7#
    • 1...Sd6
      • 2.Se7#
    • 1...Sa7
      • 2.Se7#
    • 1...Se7
      • 2.Sxe7#
  • Tries
    • 1.Qb6+?
      • 1...Sxb6
        • 2.Se7#
      • 1...Sd6
        • 2.Se7#
      • 1...Sf6!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Se7#
      • 1...Bf4+
        • 2.Se3#
      • 1...Rxf5
        • 2.Qxf5#
      • 1...Sg3
        • 2.Qg4#
      • 1...Sf4
        • 2.Sg3#
      • 1...Sf6
        • 2.Bf7#
      • 1...Se7
        • 2.Sxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • S(l);N_GUARD::S(E)
    • S(l);N_GUARD::S(E),XS(l)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • S(l);XQ(B)::S(E)
        • S(l);P_SPINS(l)::S(E)
      • Refutation
        • S(g);P_SPINS(g)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)+S(E),DCHECK
    • Vars
      • B(e);CHECK,S_CUTR(c)::QAB(B)+S(E)
      • R(c);OGATE,P_SPINR(c),XS(E)::QAB1(B),XR(c)
      • S(g);S_CUTR(d)::QAR2(B)
      • S(g);S_CUTR(c)::QAB(B)+S(E)
      • S(g);SBLOCK::B(D)
      • S(l);::QAB(B)+S(E),DCHECK,XS(l)
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