MESON Chess Problem Database

Problem Display
PID: 84392 (2B5/1p1rpp2/1bp1k3/2QN1pP1/3K1Bq1/3N2p1/4b3/4R3 w - - 0 1)

Brown, David Leo

Canadian Chess Chat, 1980

2B5/1p1rpp2/1bp1k3/2QN1pP1/3K1Bq1/3N2p1/4b3/4R3

#2

8 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Rxe2#
    • 1...Qxf4+
      • 2.Sxf4#
    • 1...Qh4
      • 2.Rxe2#
    • 1...Qxg5
      • 2.Rxe2#
    • 1...Ba5
      • 2.Qxe7#
    • 1...Bxc5+
      • 2.Sxc5#
    • 1...Bc7
      • 2.Qxe7#
    • 1...cxd5
      • 2.Qxb6#
  • Keys
    • 1.Kc4!
      • threat
        • 2.Qxe7#
      • 1...Qxf4+
        • 2.Sxf4#
      • 1...cxd5+
        • 2.Qxd5#
      • 1...Qxg5
        • 2.Rxe2#
      • 1...Bxc5
        • 2.Sc7#
      • 1...Bd8
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(c);N_GUARD,N_PINB(D)::R(A),XB(a)
    • Q(c);CHECK,XB(D)::S(B),XQ(c)
    • Q(c);N_GUARD::R(A),XB(a)
    • Q(c);N_GUARD,N_PINB(D),XP(G)::R(A),XB(a)
    • B(e);N_PINQ(E)::QAR1(E),XP(j)
    • B(e);CHECK,XQ(E)::S(B),XB(e)
    • P(f);XS(F)::QAR(E),XB(e)
  • Actual
    • K(C);N_SPINQ(E),N_SPINS(F),P-FLIGHT,P_SPINS(B)
    • Threat
      • QAR1(E),XP(j)
    • Vars
      • Q(c);CHECK,XB(D)::S(F),XQ(c)
      • P(f);CHECK,OGATE,XS(F)::QAB1(E),XP(f)
      • Q(c);N_GUARD,N_PINB(D),XP(G)::R(A),XB(a)
      • B(e);N_GUARD,XQ(E)::S(F)
      • B(e);N_GUARD::QAR(E)
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Developed and maintained by Brian Stephenson.
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