MESON Chess Problem Database

Problem Display
PID: 84520 (3R1Qbb/n1p5/2p1p1B1/1p2k1K1/1N3p2/rN1p1p2/1p6/2q1n3 w - - 0 1)

Szwedowski, Leopold Mieczyslaw

1/3 Prize, Polish Championship, 1996

3R1Qbb/n1p5/2p1p1B1/1p2k1K1/1N3p2/rN1p1p2/1p6/2q1n3

#2

6 + 15

16307 Rozmaitosci Szachowe 1996
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd2
      • 2.Qc5#
    • 1...Qa1
      • 2.Qc5#
      • 2.Qxf4#
    • 1...Qb1
      • 2.Qc5#
      • 2.Qxf4#
    • 1...Qd1
      • 2.Qc5#
      • 2.Qxf4#
    • 1...Qc2
      • 2.Qxf4#
    • 1...Qc3
      • 2.Qxf4#
    • 1...Qc5
      • 2.Qxc5#
      • 2.Qxf4#
    • 1...Bf7
      • 2.Qxh8#
    • 1...Bh7
      • 2.Qxh8#
    • 1...Bf6+
      • 2.Qxf6#
    • 1...Bg7
      • 2.Qxg7#
    • 1...Sc2
      • 2.Sxd3#
      • 2.Qc5#
    • 1...Sg2
      • 2.Sxd3#
    • 1...d2
      • 2.Qxf4#
  • Tries
    • 1.Sxc1?
      • threat
        • 2.Qc5#
        • 2.Qxf4#
      • 1...Bf6+
        • 2.Qxf6#
      • 1...bxc1B
        • 2.Qc5#
      • 1...bxc1R
        • 2.Qxf4#
      • 1...Rc3
        • 2.Qxf4#
      • 1...Bf7
        • 2.Qc5#
        • 2.Qxh8#
      • 1...Sg2
        • 2.Qc5#
      • 1...c5
        • 2.Qxc5#
        • 2.Qxf4#
      • 1...bxc1Q!
    • 1.Sd2?
      • threat
        • 2.Qxf4#
      • 1...Bf6+
        • 2.Qxf6#
      • 1...Qxd2
        • 2.Qc5#
      • 1...Bf7
        • 2.Qxh8#
      • 1...Sg2
        • 2.Sxf3#
      • 1...Qc4!
    • 1.Sc2?
      • threat
        • 2.Qc5#
      • 1...Bf6+
        • 2.Qxf6#
      • 1...Qxc2
        • 2.Qxf4#
      • 1...c5
        • 2.Qxc5#
      • 1...Qe3!
    • 1.Sxc6+?
      • 1...Qxc6
        • 2.Qxf4#
      • 1...Sxc6!
    • 1.Qe7?
      • threat
        • 2.Qxc7#
      • 1...Bf6+
        • 2.Qxf6#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Sc8!
    • 1.Qxg8?
      • threat
        • 2.Qxh8#
      • 1...Bg7
        • 2.Qxg7#
      • 1...Bf6+!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Re4#
      • 1...Bf6+
        • 2.Qxf6#
      • 1...Qe3
        • 2.Qc5#
      • 1...Qc4
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(a);N_GUARD::QAR2(F)
    • Q(a);N_GUARD::QAB1(F),XP(g)
    • B(n);OGATE::QAB(F),XB(o)
    • B(o);CHECK,N_GUARD::QAB1(F),XB(o)
    • B(o);N_GUARD::QAB(F),XB(o)
    • S(b);N_GUARD::S(B),XP(e)
    • P(e);S_CUTQ(a)::QAB1(F),XP(g)
  • Tries
    • Try
      • S(A);XQ(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(o);CHECK,N_GUARD::QAB1(F),XB(o)
        • P(c);XS(A)::QAR2(F)
        • P(c);XS(A)::QAB1(F),XP(g)
        • R(d);::QAB1(F),XP(g)
        • S(b);::QAR2(F)
      • Refutation
        • P(c);XS(A)
    • Try
      • S(A);
      • Threat
        • QAB1(F),XP(g)
      • Vars
        • B(o);CHECK,N_GUARD::QAB1(F),XB(o)
        • Q(a);N_GUARD,XS(A)::QAR2(F)
        • B(n);OGATE::QAB(F),XB(o)
        • S(b);N_GUARD::S(A),XP(f)
      • Refutation
        • Q(a);
    • Try
      • S(B);
      • Threat
        • QAR2(F)
      • Vars
        • B(o);CHECK,N_GUARD::QAB1(F),XB(o)
        • Q(a);N_GUARD,XS(B)::QAB1(F),XP(g)
        • P(j);::QAR2(F),XP(j)
      • Refutation
        • Q(a);
    • Try
      • S(B);CHECK,XP(j)
      • Vars
        • Q(a);XS(B)::QAB1(F),XP(g)
      • Refutation
        • S(l);XS(B)
    • Try
      • Q(F);P_PINP(k)
      • Threat
        • QAB(F),XP(m)
      • Vars
        • B(o);CHECK,N_GUARD::QAB1(F),XB(o)
        • Q(a);N_GUARD::QAR2(F),XQ(a)
      • Refutation
        • S(l);
    • Try
      • Q(F);XB(n)
      • Threat
        • QAB(F),XB(o)
      • Vars
        • B(o);N_GUARD::QAB(F),XB(o)
      • Refutation
        • B(o);CHECK
  • Actual
    • R(E);
    • Threat
      • R1(E)
    • Vars
      • B(o);CHECK,N_GUARD::QAB1(F),XB(o)
      • Q(a);N_GUARD::QAR2(F)
      • Q(a);N_GUARD::QAB1(F),XP(g)
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