MESON Chess Problem Database

Problem Display
PID: 99133 (K7/p2Q3b/2Pp4/1p6/1RPp2p1/3kP1N1/7q/3BBN2 w - - 0 1)

Fleck, Ferenc

Sakkelet, 1992

K7/p2Q3b/2Pp4/1p6/1RPp2p1/3kP1N1/7q/3BBN2

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Qxh7#
    • 1...Qxg3
      • 2.Qxh7#
    • 1...Qa2
      • 2.Qxh7#
    • 1...Qb2
      • 2.Qxh7#
    • 1...Qc2
      • 2.Qxh7#
    • 1...Qe2
      • 2.Qxh7#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Bg8
      • 2.Qf5#
    • 1...dxe3
      • 2.Qxd6#
  • Tries
    • 1.Bc2+?
      • 1...Qxc2
        • 2.Qxh7#
      • 1...Kxc2!
    • 1.Be2+?
      • 1...Qxe2
        • 2.Qxh7#
      • 1...Kc2!
    • 1.Qxg4?
      • threat
        • 2.Qxd4#
      • 1...dxe3
        • 2.Rb3#
      • 1...Qh4
        • 2.Qe2#
      • 1...Be4
        • 2.Qxe4#
      • 1...Qb2!
    • 1.Qxa7?
      • threat
        • 2.Qxd4#
        • 2.Qa3#
      • 1...Qxg3
        • 2.Qxd4#
        • 2.Qxh7#
      • 1...dxe3
        • 2.Qxe3#
      • 1...bxc4
        • 2.Qxd4#
      • 1...Qd2
        • 2.Qxd4#
      • 1...Qb2
        • 2.Qxh7#
      • 1...Qc2
        • 2.Qxd4#
        • 2.Qxh7#
      • 1...Qa2!
    • 1.cxb5?
      • threat
        • 2.Rxd4#
      • 1...dxe3
        • 2.Qxd6#
      • 1...Qb2
        • 2.Qxh7#
      • 1...Qd2!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qxd4#
      • 1...dxe3
        • 2.Qc3#
      • 1...Qb2
        • 2.Qxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD::QAB(I),XB(h)
    • Q(a);N_GUARD,XS(E)::QAB(I),XB(h)
    • B(h);N_GUARD::QAB(I),XB(h)
    • B(h);N_GUARD::QAB(I)
    • P(c);OGATEB,P_SPINP(f),XP(D)::QAR(I),XP(f)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • Q(a);SBLOCK,XB(A)::QAB(I),XB(h)
      • Refutation
        • K(b);S_FLIGHT,XB(A)
    • Try
      • B(A);CHECK
      • Vars
        • Q(a);XB(A)::QAB(I),XB(h)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(I);XP(d)
      • Threat
        • QAR1(I),XP(c)
      • Vars
        • P(c);XP(D)::R(F)
        • Q(a);N_GUARD::QAB1(I)
        • B(h);N_GUARD,P_PINP(H)::QAB1(I),XB(h)
      • Refutation
        • Q(a);
    • Try
      • Q(I);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(c);OGATE,XP(D)::QAR1(I),XP(c)
        • P(e);XP(G)::QAR1(I),XP(c)
        • Q(a);::QAR1(I),XP(c)
        • Q(a);N_GUARD::QAB(I),XB(h)
      • Refutation
        • Q(a);P_PINQ(I)
    • Try
      • P(G);XP(e)
      • Threat
        • R1(F),XP(c)
      • Vars
        • P(c);OGATEB,P_SPINP(f),XP(D)::QAR(I),XP(f)
        • Q(a);N_GUARD::QAB(I),XB(h)
      • Refutation
        • Q(a);
  • Actual
    • Q(I);
    • Threat
      • QAR1(I),XP(c)
    • Vars
      • P(c);OGATE,XP(D)::QAR1(I)
      • Q(a);N_GUARD::QAB(I),XB(h)
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