MESON Chess Problem Database

Problem Display
PID: 129753 (8/2Q5/3K3B/8/8/8/R3BNpp/2n1k1br w - - 0 1)

Smutny, Jan

Delnicke listy, 1911

8/2Q5/3K3B/8/8/8/R3BNpp/2n1k1br

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf2
      • 2.Qa5#
      • 2.Qxc1#
      • 2.Qc3#
    • 1...Sb3
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
  • Tries
    • 1.Bxc1?
      • threat
        • 2.Sd3#
      • 1...Bxf2
        • 2.Qa5#
        • 2.Qc3#
      • 1...Kxf2!
    • 1.Qc2?
      • 1...Bxf2
        • 2.Qd1#
        • 2.Qxc1#
        • 2.Qd2#
        • 2.Qc3#
      • 1...Sxa2
        • 2.Sd3#
      • 1...Sxe2
        • 2.Qxe2#
      • 1...Sb3
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Kxf2!
    • 1.Qc4?
      • 1...Kxf2
        • 2.Qh4#
      • 1...Bxf2
        • 2.Bd2#
        • 2.Qxc1#
        • 2.Qc3#
        • 2.Qb4#
      • 1...Sxe2
        • 2.Qxe2#
      • 1...Sb3
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sxa2!
  • Keys
    • 1.Qe7!
      • 1...Kxf2
        • 2.Qh4#
      • 1...Bxf2
        • 2.Bd2#
      • 1...Sxa2
        • 2.Sd3#
      • 1...Sxe2
        • 2.Qxe2#
      • 1...Sb3
        • 2.Sd3#
        • 2.Bd3#
        • 2.Bc4#
        • 2.Bb5#
        • 2.Ba6#
      • 1...Sd3
        • 2.Sxd3#
        • 2.Bxd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
  • Tries
    • Try
      • B(E);XS(a)
      • Threat
        • S(C)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Vars
        • S(a);N_GUARD,XR(A)::S(C)
        • S(a);OGATE,XB(B)::QAR1(F),XS(a)
        • S(a);N_GUARD::S(C)
        • S(a);N_GUARD::S(C),XS(a)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB(F)
        • S(a);OGATE,XB(B)::QAR1(F),XS(a)
        • S(a);N_GUARD::S(C)
        • S(a);N_GUARD::S(C),XS(a)
      • Refutation
        • S(a);XR(A)
  • Actual
    • Q(F);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(C)::QAB(F)
      • B(c);SBLOCK,XS(C)::B(E)
      • S(a);N_GUARD,XR(A)::S(C)
      • S(a);OGATE,P_SPINS(a),XB(B)::QAR1(F),XS(a)
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