MESON Chess Problem Database

Problem Display
PID: 6885 (5B2/R1N5/2k1B3/P7/q1N2K2/r1R5/8/8 w - - 0 1)

Mansfield, Comins

Morning Post, 1934

5B2/R1N5/2k1B3/P7/q1N2K2/r1R5/8/8

#2

8 + 3

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Sxa3#
      • 2.Se5#
    • 1...Qc2
      • 2.Se5#
    • 1...Qb3
      • 2.Se5#
    • 1...Qb5
      • 2.Se5#
    • 1...Qxc4+
      • 2.Rxc4#
  • Tries
    • 1.Kg5?
      • threat
        • 2.Se5#
      • 1...Qxc4
        • 2.Rxc4#
      • 1...Qxa5+!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sd4#
      • 1...Kxb5
        • 2.Bd7#
      • 1...Qxb5
        • 2.Se5#
      • 1...Qd1
        • 2.Scxa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • Q(b);N_PINS(B)::R(A)+S(B),DCHECK
    • Q(b);CHECK,OGATE,P_SPINQ(b),XS(B)::R(A),XQ(b)
  • Tries
    • Try
      • K(C);N_SPINS(B),S_FLIGHT
      • Threat
        • R(A)+S(B),DCHECK
      • Vars
        • Q(b);OGATE,P_SPINQ(b),XS(B)::R(A),XQ(b)
      • Refutation
        • Q(b);CHECK,XP(D)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(c);S_FLIGHT,XS(G)::B(E)
      • Q(b);N_PINS(B),SBLOCK,XS(G)::R(A)+S(B),DCHECK
      • Q(b);N_PINS(B)::R(A)+S(B),XR(a)
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