MESON Chess Problem Database

Problem Display
PID: 104578 (8/q1p5/8/3p1pp1/p3k3/2R2N2/2KQ4/3N4 w - - 0 1)

Saletic, Slobodan

Cik, 1967

8/q1p5/8/3p1pp1/p3k3/2R2N2/2KQ4/3N4

#2

5 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf2
      • 2.Sxf2#
    • 1...Qe3
      • 2.Qxe3#
    • 1...Qd4
      • 2.Qxd4#
    • 1...Qb8
      • 2.Sf2#
      • 2.Qe3#
      • 2.Qd4#
    • 1...Qa5
      • 2.Sf2#
      • 2.Qe3#
      • 2.Qd4#
    • 1...Qa6
      • 2.Sf2#
      • 2.Qe3#
      • 2.Qd4#
    • 1...Qb7
      • 2.Sf2#
      • 2.Qe3#
      • 2.Qd4#
    • 1...Qa8
      • 2.Sf2#
      • 2.Qe3#
      • 2.Qd4#
    • 1...f4
      • 2.Qd3#
    • 1...c5
      • 2.Sf2#
      • 2.Qe3#
  • Tries
    • 1.Re3+?
      • 1...Qxe3
        • 2.Qxe3#
      • 1...Kf4!
    • 1.Qe1+?
      • 1...Qe3
        • 2.Qxe3#
      • 1...Kf4!
    • 1.Qe2+?
      • 1...Qe3
        • 2.Qxe3#
      • 1...Kf4!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Qe5#
      • 1...Qf2+
        • 2.Sxf2#
      • 1...Qe3
        • 2.Rxe3#
      • 1...f4
        • 2.Qh7#
      • 1...Qd4
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(f);N_GUARD,P_PINQ(C)::S(A),XQ(f)
    • Q(f);N_GUARD::QAR1(C),XQ(f)
    • P(d);SBLOCK::QAB1(C)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • Q(f);OGATE,XR(D)::QAR1(C),XQ(f)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::QAR1(C),XQ(f)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::QAR1(C),XQ(f)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • Q(f);CHECK,N_GUARD::S(A),XQ(f)
      • Q(f);N_GUARD::R1(D),XQ(f)
      • P(d);OGATEB,SBLOCK::QAB(C)
      • Q(f);SBLOCK::S(E),XP(e)
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