MESON Chess Problem Database

Problem Display
PID: 104681 (8/2B5/3p4/2p2p2/Bp1kpP2/1Pr5/1PQ2P2/N1K1N3 w - - 0 1)

Juricek, Stanislav

Canadian Chess Chat, 1980

8/2B5/3p4/2p2p2/Bp1kpP2/1Pr5/1PQ2P2/N1K1N3

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Qc4#
    • 1...Re3
      • 2.Qc4#
    • 1...Rf3
      • 2.Qc4#
    • 1...Rg3
      • 2.Qc4#
    • 1...Rh3
      • 2.Qc4#
    • 1...Rc4
      • 2.Qxc4#
    • 1...d5
      • 2.Be5#
  • Tries
    • 1.Qxc3+?
      • 1...Kd5
        • 2.Qc4#
      • 1...bxc3!
    • 1.bxc3+?
      • 1...bxc3
        • 2.Qd1#
      • 1...Kd5!
  • Keys
    • 1.Bc6!
      • 1...Rxc2+
        • 2.Saxc2#
      • 1...Rxb3
        • 2.Sxb3#
      • 1...c4
        • 2.Bb6#
      • 1...Rd3
        • 2.Qc4#
      • 1...Re3
        • 2.Qc4#
      • 1...Rf3
        • 2.Qc4#
      • 1...Rg3
        • 2.Qc4#
      • 1...Rh3
        • 2.Qc4#
      • 1...Rc4
        • 2.Qxc4#
      • 1...e3
        • 2.Sf3#
      • 1...d5
        • 2.Be5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(a);N_PINQ(E)::QAR1(E)
    • R(a);::QAR1(E),XR(a)
    • P(g);OGATE,SBLOCK::B(J)
  • Tries
    • Try
      • Q(E);CHECK,N_SPINQ(E),XR(a)
      • Vars
        • K(c);P-FLIGHT::QAB1(E)
      • Refutation
        • P(b);XQ(E)
    • Try
      • P(D);CHECK,N_SPINQ(E),XR(a)
      • Vars
        • P(b);SBLOCK,XP(D)::QAR(E)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • B(H);
    • Vars
      • R(a);CHECK,XQ(E)::S(A),XR(a)
      • R(a);N_PINQ(E),XP(G)::S(A),XR(a)
      • P(e);OGATEB::B(J)
      • R(a);N_PINQ(E)::QAR1(E)
      • R(a);::QAR1(E),XR(a)
      • P(d);N_GUARD,S_CUTR(a)::S(C)
      • P(g);OGATE::B(J)
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