MESON Chess Problem Database

Problem Display
PID: 276410 (7K/3pNp1p/1P1P3r/1n1PkP1n/1Qp1N2B/7P/8/1B1R1R2 w - - 0 1)

Bartolovic, Hrvoje

Stella Polaris, 1970

7K/3pNp1p/1P1P3r/1n1PkP1n/1Qp1N2B/7P/8/1B1R1R2

#2

13 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sa3
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sxd6
      • 2.Qc3#
    • 1...Sa7
      • 2.Qc3#
    • 1...Sc7
      • 2.Qc3#
    • 1...Sg3
      • 2.Bxg3#
    • 1...Sf6
      • 2.Bg3#
    • 1...Sg7
      • 2.Bg3#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Sxc4#
      • 1...Kd4
        • 2.Sxc4#
      • 1...Sxd6
        • 2.Qc3#
      • 1...c3
        • 2.Sf3#
        • 2.Sc4#
        • 2.Rde1#
        • 2.Rfe1#
      • 1...Sa3!
    • 1.Sf2?
      • threat
        • 2.Sg4#
      • 1...Kf4
        • 2.Sg4#
      • 1...Sf6
        • 2.Bg3#
      • 1...Rg6!
    • 1.Sg5?
      • threat
        • 2.Sxf7#
      • 1...Kf6
        • 2.Sf3#
      • 1...Sxd6
        • 2.Qc3#
      • 1...f6
        • 2.Sf7#
      • 1...Rf6!
    • 1.Sf6?
      • threat
        • 2.Sg4#
        • 2.Sxd7#
      • 1...Sxf6
        • 2.Bg3#
      • 1...Rg6
        • 2.Sxd7#
      • 1...Rxf6!
    • 1.Bg3+?
      • 1...Sf4
        • 2.Bxf4#
      • 1...Sxg3!
    • 1.Qc3+?
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sxc3!
    • 1.Qb2+?
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sd4
        • 2.Qxd4#
      • 1...c3!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sxd7#
      • 1...Kxd6
        • 2.Sd3#
      • 1...Rxd6
        • 2.Qe1#
      • 1...Sf6
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • S(b);N_GUARD::QAB(E)
    • S(b);N_GUARD::QAB(E),XS(b)
    • S(b);N_GUARD,XP(K)::QAB(E)
    • S(d);N_GUARD::B(G),XS(d)
    • S(d);N_GUARD::B(G)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F),XP(a)
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::R(B)+S(F),XP(a)
        • S(b);N_GUARD,SBLOCK,XP(K)::QAB(E)
      • Refutation
        • S(b);
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::R(C)+S(F)
        • S(d);N_GUARD,SBLOCK::B(G)
      • Refutation
        • R(e);
    • Try
      • S(F);
      • Threat
        • S(F),XP(g)
      • Vars
        • K(c);N_GUARD,S_FLIGHT::B(G)+S(F)
        • S(b);N_GUARD,SBLOCK,XP(K)::QAB(E)
        • P(g);::S(F)
      • Refutation
        • R(e);
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);N_GUARD,SBLOCK,XS(F)::B(G)
        • R(e);::S(F),XP(f)
      • Refutation
        • R(e);XS(F)
    • Try
      • B(G);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::B(G),XS(d)
      • Refutation
        • S(d);XB(G)
    • Try
      • Q(E);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(E),XS(b)
      • Refutation
        • S(b);XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB(E),XS(b)
        • S(b);N_GUARD,P_SPINS(b)::QAB1(E),XS(b)
      • Refutation
        • P(a);P_SPINP(a)
  • Actual
    • S(F);
    • Threat
      • S(F),XP(f)
    • Vars
      • K(c);N_GUARD,S_CUTP(a),S_FLIGHT,XP(K)::QAB(E)+S(F)
      • R(e);SBLOCK,XP(K)::QAR(E)
      • S(d);N_GUARD,SBLOCK::B(G)
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