MESON Chess Problem Database

Problem Display
PID: 18155 (8/2b5/8/8/1R2Np2/N2k1P2/1n6/BK2R3 w - - 0 1)

Mansfield, Comins

Time & Tide, 1953

8/2b5/8/8/1R2Np2/N2k1P2/1n6/BK2R3

#2

7 + 4

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Rd4#
    • 1...Sa4
      • 2.Rd4#
    • 1...Sc4
      • 2.Rb3#
  • Tries
    • 1.Bxb2?
      • threat
        • 2.Rb3#
        • 2.Rd4#
      • 1...Ba5
        • 2.Rd4#
      • 1...Bb6
        • 2.Rb3#
      • 1...Be5!
    • 1.Rxb2?
      • threat
        • 2.Rd2#
        • 2.Rb3#
      • 1...Kd4
        • 2.Rd2#
      • 1...Be5
        • 2.Rd2#
      • 1...Ba5!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sxb2#
      • 1...Kd4
        • 2.Rd1#
      • 1...Sxc4
        • 2.Rb3#
      • 1...Be5
        • 2.Sxe5#
      • 1...Sd1
        • 2.Sc5#
      • 1...Sa4
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);::R1(F)
    • S(a);::R(F)
  • Tries
    • Try
      • B(A);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(d);::R1(F)
        • B(d);::R(F)
      • Refutation
        • B(d);
    • Try
      • R(F);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::B(A)+R(F),DCHECK
        • B(d);::R1(F)
      • Refutation
        • B(d);
  • Actual
    • S(D);
    • Threat
      • S(D),XS(a)
    • Vars
      • K(b);P-FLIGHT,P_SPINS(a)::R(C)
      • S(a);SBLOCK,XS(D)::R(F)
      • B(d);N_GUARD::S(D),XB(d)
      • S(a);::S(G)
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