MESON Chess Problem Database

Problem Display
PID: 138517 (4R3/1K6/2QN4/4N3/2pk4/2p2pn1/2p1b3/8 w - - 0 1)

Nesic, Milivoj S

Cik pogodi, 1966

4R3/1K6/2QN4/4N3/2pk4/2p2pn1/2p1b3/8

#2

5 + 7

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Sxf3#
    • 1...Sf1
      • 2.Sf5#
    • 1...Sh1
      • 2.Sf5#
    • 1...Se4
      • 2.Sf5#
    • 1...Sf5
      • 2.Sxf5#
    • 1...Sh5
      • 2.Sf5#
  • Tries
    • 1.Kb6?
      • threat
        • 2.Qc5#
      • 1...Se4
        • 2.Sf5#
        • 2.Qxe4#
      • 1...Ke3!
    • 1.Sxf3+?
      • 1...Kd3
        • 2.Qd5#
        • 2.Qxc4#
      • 1...Bxf3!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qxc4#
      • 1...Kxd3
        • 2.Qd5#
      • 1...Bxd3
        • 2.Sb5#
      • 1...cxd3
        • 2.Sb5#
        • 2.Qc4#
      • 1...Se4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(b);N_GUARD,SBLOCK::S(A),XP(d)
    • S(e);N_GUARD::S(C)
    • S(e);N_GUARD::S(C),XS(e)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • QAB1(B)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • S(A);CHECK,XP(d)
      • Refutation
        • B(b);P_PINQ(B),XS(A)
  • Actual
    • S(A);
    • Threat
      • QAR1(B),XP(f)
    • Vars
      • K(g);P-FLIGHT,XS(A)::QAR2(B)
      • B(b);SBLOCK,XS(A)::S(C)
      • S(e);N_GUARD::QAR1(B),XS(e)
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