MESON Chess Problem Database

Problem Display
PID: 104433 (2K1N3/B1bQ3n/nNp5/1p2k1qR/1r2pp2/5p2/B2Pb3/4R3 w - - 0 1)

Mladenovic, Slobodan

Match: Macedonia - Serbia, 1983

2K1N3/B1bQ3n/nNp5/1p2k1qR/1r2pp2/5p2/B2Pb3/4R3

#2

9 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Rxf5#
    • 1...Rd4
      • 2.Qe6#
    • 1...Bc4
      • 2.d4#
    • 1...Sf6
      • 2.Rxg5#
    • 1...Sf8
      • 2.Rxg5#
    • 1...c5
      • 2.Qd5#
  • Tries
    • 1.Sc4+?
      • 1...Bxc4
        • 2.Bd4#
        • 2.d4#
      • 1...bxc4
        • 2.Bd4#
      • 1...Rxc4!
    • 1.Qd6+?
      • 1...Kf5
        • 2.Qe6#
      • 1...Bxd6!
    • 1.Qe7+?
      • 1...Kf5
        • 2.Qe6#
      • 1...Kd4!
    • 1.Qg7+?
      • 1...Sf6
        • 2.Qxf6#
      • 1...Kf5!
    • 1.d4+?
      • 1...Rxd4
        • 2.Qe6#
      • 1...exd4 ep!
  • Keys
    • 1.Qxc6!
      • threat
        • 2.Qd5#
      • 1...Qf5+
        • 2.Sd7#
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf5
        • 2.Qe6#
      • 1...Rd4
        • 2.Qe6#
      • 1...Bc4
        • 2.Qxe4#
      • 1...Sf6
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(h);OGATE,P_PINQ(G)::R1(D),XQ(h)
    • R(c);SBLOCK::QAR1(G)
    • B(a);P_SPINP(d),S_CUTR(c)::P(C)
    • S(l);N_GUARD::R(D),XQ(h)
    • P(j);N_GUARD::QAR1(G)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • P(f);XS(E)::B(F)
      • Refutation
        • R(c);XS(E)
    • Try
      • Q(G);CHECK
      • Vars
        • K(g);P-FLIGHT::QAB1(G)
      • Refutation
        • B(k);XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • K(g);P-FLIGHT::QAB1(G)
      • Refutation
        • K(g);N_SPINQ(h),S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • S(l);N_GUARD,P_SPINS(l)::QAB1(G),XS(l)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • P(C);CHECK
      • Vars
        • R(c);SBLOCK,XP(C)::QAR1(G)
      • Refutation
        • P(d);EP,P_SPINB(a),XP(C)
  • Actual
    • Q(G);XP(j)
    • Threat
      • QAR1(G)
    • Vars
      • Q(h);CHECK::S(E)
      • K(g);N_SPINQ(h),S_FLIGHT::QAB1(G)
      • K(g);P-FLIGHT::QAB1(G)
      • R(c);SBLOCK::QAR1(G)
      • B(a);P_SPINP(d),S_CUTR(c)::QAR1(G),XP(d)
      • S(l);N_GUARD::QAB1(G),XS(l)
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Developed and maintained by Brian Stephenson.
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