MESON Chess Problem Database

Problem Display
PID: 56132 (Q6K/1NB1p2B/1NR4p/2P2P2/3Pk3/p2r3R/1bPP1q2/2n1r2b w - - 0 1)

Mansfield, Comins

2nd Comm., Mat, 1983

Q6K/1NB1p2B/1NR4p/2P2P2/3Pk3/p2r3R/1bPP1q2/2n1r2b

#2

13 + 10

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qa4#
    • 1...Qxd4+
      • 2.f6#
    • 1...Rxd4
      • 2.Re6#
  • Tries
    • 1.cxd3+?
      • 1...Kxd4
        • 2.Qa4#
      • 1...Sxd3!
    • 1.f6+?
      • 1...Kxd4
        • 2.Qa4#
      • 1...Qf5!
  • Keys
    • 1.Re6+!
      • 1...Kxd4
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • K(h);OGATEB,P-FLIGHT,XP(D)::QAR(L)
    • Q(e);CHECK,N_GUARD,SBLOCK,XP(D)::B(K)+P(F)
    • R(g);SBLOCK,XP(D)::R(H)
  • Tries
    • Try
      • P(A);CHECK,XR(g)
      • Vars
        • K(h);P-FLIGHT,XP(D)::QAR(L)
      • Refutation
        • S(a);XP(A)
    • Try
      • P(F);CHECK,N_SPINP(D)
      • Vars
        • K(h);P-FLIGHT,XP(D)::QAR(L)
      • Refutation
        • Q(e);P_SPINQ(e)
  • Actual
    • R(H);CHECK
    • Vars
      • K(h);P-FLIGHT,XP(D)::QAR(L)
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