MESON Chess Problem Database

Problem Display
PID: 55443 (8/1B1pP3/3P1Qb1/2KNNqp1/R1p1kpp1/8/1pr1P3/8 w - - 0 1)

Mansfield, Comins

5th HM., Schach-Echo, 1974/I

8/1B1pP3/3P1Qb1/2KNNqp1/R1p1kpp1/8/1pr1P3/8

#2

9 + 10

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe2
      • 2.Rxc4#
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Qd4#
      • 1...Qxd5+
        • 2.Bxd5#
      • 1...Rxc4+
        • 2.Rxc4#
      • 1...Qxf6
        • 2.Se3#
      • 1...Rxe2
        • 2.Se5#
      • 1...Qe6
        • 2.Sc3#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Rd2
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD,XP(A)::R(B),XP(c)
  • Actual
    • S(E);P_SPINS(E),XP(c)
    • Threat
      • QAR1(G)
    • Vars
      • Q(g);CHECK,OGATE,P_SPINQ(g),XS(D)::B(H),XQ(g)
      • R(b);CHECK,OGATE,P_PINS(D),P_SPINR(b),XS(E)::R(B),XR(b)
      • Q(g);XQ(G)::B(H)+S(D)
      • R(b);N_PINS(E),P_PINS(D),XP(A)::R(B)+S(E)
      • Q(g);::B(H)+S(D),DCHECK
      • Q(g);N_GUARD::QAR1(G),XQ(g)
      • R(b);N_PINS(E),P_PINS(D)::R(B)+S(E),DCHECK,XR(b)
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