MESON Chess Problem Database

Problem Display
PID: 101948 (5NK1/5pB1/2p2Rp1/1nppn3/3kb3/pQ2pr2/4B1p1/3N4 w - - 0 1)

Mladenovic, Slobodan

Schweizer Arbeiter Schach, 1972

5NK1/5pB1/2p2Rp1/1nppn3/3kb3/pQ2pr2/4B1p1/3N4

#2

7 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Qxe3#
    • 1...Rf2
      • 2.Qxe3#
    • 1...Rf4
      • 2.Qxe3#
    • 1...Rf5
      • 2.Qxe3#
    • 1...Rxf6
      • 2.Qxe3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sd6
      • 2.Qc3#
    • 1...Sa7
      • 2.Qc3#
    • 1...Sc7
      • 2.Qc3#
  • Tries
    • 1.Rf4?
      • threat
        • 2.Qd3#
      • 1...Rxf4
        • 2.Qxe3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...f6
        • 2.Se6#
      • 1...c4!
    • 1.Qb2+?
      • 1...Sc3
        • 2.Qxc3#
      • 1...axb2!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Qc4#
      • 1...Sxd6
        • 2.Qc3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...c4
        • 2.Qxc4#
      • 1...Rf6
        • 2.Qxe3#
      • 1...f6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(d);N_GUARD::QAB1(C),XP(c)
    • R(d);N_GUARD,XR(D)::QAB1(C),XP(c)
    • S(g);N_GUARD::QAB1(C),XS(g)
    • S(g);N_GUARD::QAB1(C)
  • Tries
    • Try
      • R(D);P_PINB(f),P_PINS(j)
      • Threat
        • QAR1(C)
      • Vars
        • R(d);N_GUARD,N_SPINB(f),XR(D)::QAB1(C),XP(c)
        • S(g);N_GUARD::QAB1(C),XS(g)
        • P(m);N_GUARD,N_SPINS(j)::S(F)
      • Refutation
        • P(h);
    • Try
      • Q(C);CHECK
      • Vars
        • S(g);N_GUARD,P_SPINS(g)::QAB1(C),XS(g)
      • Refutation
        • P(b);XQ(C)
  • Actual
    • R(D);P_PINP(i),P_PINS(j)
    • Threat
      • QAR1(C)
    • Vars
      • S(g);N_GUARD,N_SPINP(i),XR(D)::QAB1(C)
      • B(f);N_GUARD::QAR1(C),XB(f)
      • P(h);::QAR1(C),XP(h)
      • R(d);N_GUARD,N_SPINS(j)::QAB1(C),XP(c)
      • P(m);N_GUARD,N_SPINS(j)::S(F)
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