MESON Chess Problem Database

Problem Display
PID: 164180 (1bb5/3n2q1/8/1r1p1RB1/4k2N/n1p1pN1K/8/3Q1R2 w - - 0 1)

Popovski, Aleksandr

Sachmatija, 2006

1bb5/3n2q1/8/1r1p1RB1/4k2N/n1p1pN1K/8/3Q1R2

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Qxd4#
    • 1...Qh6
      • 2.Qd4#
    • 1...Qf8
      • 2.Qd4#
    • 1...Qxg5
      • 2.Sxg5#
      • 2.Qd4#
    • 1...Qg6
      • 2.Qd4#
    • 1...Qe7
      • 2.Qd4#
    • 1...Qf7
      • 2.Qd4#
    • 1...Qh7
      • 2.Qd4#
    • 1...Qg8
      • 2.Qd4#
    • 1...Rb1
      • 2.Qxd5#
    • 1...Rb2
      • 2.Qxd5#
    • 1...Rb3
      • 2.Qxd5#
    • 1...Rb4
      • 2.Qxd5#
    • 1...Rb6
      • 2.Qxd5#
    • 1...Rb7
      • 2.Qxd5#
    • 1...Bf4
      • 2.Rxf4#
    • 1...Ba7
      • 2.Rf4#
    • 1...Sb1
      • 2.Qc2#
    • 1...Sc2
      • 2.Qxc2#
    • 1...Sc4
      • 2.Qc2#
    • 1...Sc5
      • 2.Qxd5#
    • 1...Se5
      • 2.Qd4#
    • 1...Sf6
      • 2.Qd4#
    • 1...e2
      • 2.Qxe2#
  • Tries
    • 1.Re1?
      • threat
        • 2.Rxe3#
      • 1...Qxg5
        • 2.Sxg5#
        • 2.Qd4#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Bf4
        • 2.Rxf4#
      • 1...Ba7
        • 2.Rf4#
      • 1...Sc2
        • 2.Qxc2#
      • 1...Sc4
        • 2.Qc2#
      • 1...e2
        • 2.Rxe2#
        • 2.Qxe2#
      • 1...d4!
  • Keys
    • 1.Se1!
      • threat
        • 2.Qd3#
      • 1...Qd4
        • 2.Qf3#
      • 1...Sc5
        • 2.Qxd5#
      • 1...Se5
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 20
  • Sets
    • Q(h);N_GUARD::QAR1(A),XQ(h)
    • Q(h);N_GUARD,P_PINS(E)::QAR1(A)
    • Q(h);N_GUARD::QAR1(A)
    • R(e);N_GUARD::QAB1(A),XP(f)
    • B(i);N_GUARD::R1(F),XB(i)
    • B(i);N_GUARD::R1(F)
    • S(a);N_GUARD::QAB(A)
    • S(a);N_GUARD::QAB(A),XS(a)
    • S(g);P_PINR(F),S_CUTR(e)::QAB1(A),XP(f)
    • S(g);P_PINR(F),S_CUTQ(h)::QAR1(A)
    • P(c);OGATEB::QAR2(A),XP(c)
  • Tries
    • Try
      • R(B);P_PINP(c)
      • Threat
        • R1(B),XP(c)
      • Vars
        • Q(h);N_GUARD::QAR1(A),XQ(h)
        • B(i);N_GUARD::R1(F),XB(i)
        • B(i);N_GUARD::R1(F)
        • S(a);N_GUARD::QAB(A),XS(a)
        • S(a);N_GUARD::QAB(A)
      • Refutation
        • P(f);
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • Q(h);SBLOCK::QAB1(A)
      • S(g);P_PINR(F),S_CUTR(e)::QAB1(A),XP(f)
      • S(g);P_PINR(F),S_CUTB(i)::R1(B)
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