MESON Chess Problem Database

Problem Display
PID: 2049 (8/3K1PQ1/2p2P1B/2Rbk3/1P6/4N3/2B1Rr2/5n2 w - - 0 1)

Barnett, James P

La Regence, 1860

8/3K1PQ1/2p2P1B/2Rbk3/1P6/4N3/2B1Rr2/5n2

#2

10 + 5

1679 American Chess Nuts 1868
14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5+?
      • 1...Se3
        • 2.Rxe3#
      • 1...Rxe2!
  • Keys
    • 1.Qg1!
      • 1...Kd4
        • 2.Sf5#
      • 1...Kxf6
        • 2.Qg7#
      • 1...Rxe2
        • 2.Sg4#
      • 1...Rxf6
        • 2.Sxf1#
        • 2.Sc4#
        • 2.Sg4#
      • 1...Sxe3
        • 2.Qa1#
      • 1...Rg2
        • 2.Sg4#
      • 1...Rh2
        • 2.Sg4#
      • 1...Rf3
        • 2.Sg4#
      • 1...Rf4
        • 2.Sg4#
      • 1...Rf5
        • 2.Sg4#
      • 1...Sd2
        • 2.Qa1#
      • 1...Sh2
        • 2.Qa1#
      • 1...Sg3
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::R(B),XS(a)
      • Refutation
        • R(b);XR(B)
  • Actual
    • Q(J);
    • Vars
      • K(d);N_SPINB(c),S_FLIGHT::S(C)
      • K(d);N_SPINB(c),OGATEB,S_FLIGHT,XP(F)::QAB1(J)
      • R(b);XR(B)::S(C)
      • S(a);OGATE,P_SPINS(a),XS(C)::QAB(J)
      • R(b);::R(B)+S(C),DCHECK
      • S(a);OGATE::QAB(J)
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Developed and maintained by Brian Stephenson.
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