MESON Chess Problem Database

Problem Display
PID: 87594 (4R3/1N2q2P/3N1Qp1/4P1p1/1n1k4/1B4n1/2PP4/1K4b1 w - - 0 1)

Kruk, Henryk

1/3 Prize, Polish Championship, 1996

4R3/1N2q2P/3N1Qp1/4P1p1/1n1k4/1B4n1/2PP4/1K4b1

#2

10 + 7

16307 Rozmaitosci Szachowe 1996
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd6
      • 2.exd6#
    • 1...Qxe5
      • 2.Qxe5#
    • 1...Qc7
      • 2.e6#
    • 1...Qd7
      • 2.e6#
    • 1...Qxh7
      • 2.e6#
    • 1...Qxe8
      • 2.e6#
    • 1...Se4
      • 2.Sb5#
    • 1...Sd3
      • 2.c3#
  • Tries
    • 1.Qf2+?
      • 1...Kxe5
        • 2.Rxe7#
        • 2.d4#
        • 2.h8Q#
        • 2.h8B#
      • 1...Bxf2!
    • 1.Qf4+?
      • 1...Se4
        • 2.Sb5#
        • 2.Qxe4#
      • 1...gxf4!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qc3#
      • 1...Kxe5
        • 2.h8Q#
        • 2.h8B#
      • 1...Qxd6
        • 2.c3#
      • 1...Qc7
        • 2.Sb5#
      • 1...Be3
        • 2.Qxe3#
      • 1...Se2
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sa2
        • 2.Qd5#
      • 1...Sd3
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • Q(g);OGATE,XS(F)::QAB(G)+P(E),XQ(g)
    • Q(g);OGATE,P_SPINQ(g),XP(E)::QAB1(G),XQ(g)
    • Q(g);N_GUARD::QAB(G)+P(E)
    • Q(g);N_GUARD,XP(I)::QAB(G)+P(E)
    • Q(g);N_GUARD,XR(J)::QAB(G)+P(E)
    • S(b);SBLOCK::S(F)
    • S(c);SBLOCK::P(B)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • B(a);XQ(G)
    • Try
      • Q(G);CHECK
      • Refutation
        • P(e);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • K(d);P_SPINQ(g),S_FLIGHT,XP(E)::P=Q
      • Q(g);XS(F)::P(B)
      • Q(g);::S(F)
      • B(a);N_GUARD::QAB1(G),XB(a)
      • S(b);N_GUARD::QAR1(G)
      • S(b);N_GUARD::QAR1(G),XS(b)
      • S(c);N_GUARD::QAR1(G)
      • S(c);N_GUARD::QAR1(G),XS(c)
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