MESON Chess Problem Database

Problem Display
PID: 6241 (Q5r1/6qr/p1R1pn2/1P1k1p2/5B2/4pR2/K3NN2/7B w - - 0 1)

Mansfield, Comins

3rd Prize, Chess Amateur (The) (Valve Ty.), 1928

Q5r1/6qr/p1R1pn2/1P1k1p2/5B2/4pR2/K3NN2/7B

#2

9 + 9

3202 Complete Mansfield/I 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Sg4
      • 2.Rh3#
    • 1...Sh5
      • 2.Rg3#
    • 1...Sd7
      • 2.Rc8#
    • 1...Se8
      • 2.Rc7#
    • 1...exf2
      • 2.Rd3#
  • Tries
    • 1.Rxe3+?
      • 1...Qg2
        • 2.Rd3#
        • 2.Re5#
      • 1...Rxh1
        • 2.Rd3#
        • 2.Re5#
      • 1...Se4!
  • Keys
    • 1.Sd1!
      • threat
        • 2.Sdc3#
      • 1...Ke4
        • 2.Rxe3#
      • 1...Se4
        • 2.Sxe3#
      • 1...Sg4
        • 2.Rh3#
      • 1...Sh5
        • 2.Rg3#
      • 1...Sd7
        • 2.Rc8#
      • 1...Se8
        • 2.Rc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(f);N_GUARD,S_CUTQ(g)::B(A)+R(E)
    • S(f);N_GUARD,S_CUTR(h)::B(A)+R(E)
    • S(f);S_CUTQ(g)::QAB(I)+R(H)
    • S(f);S_CUTR(i)::QAB(I)+R(H)
    • P(a);OGATE,XS(D)::B(A)+R(E),DCHECK
  • Tries
    • Try
      • R(E);CHECK,XP(a)
      • Refutation
        • S(f);P_SPINS(f)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(b);S_FLIGHT::B(A)+R(E),DCHECK,XP(a)
      • S(f);SBLOCK::S(D),XP(a)
      • S(f);N_GUARD,S_CUTQ(g)::B(A)+R(E)
      • S(f);N_GUARD,S_CUTR(h)::B(A)+R(E)
      • S(f);S_CUTQ(g)::QAB(I)+R(H)
      • S(f);S_CUTR(i)::QAB(I)+R(H)
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