MESON Chess Problem Database

Problem Display
PID: 165474 (N2N2nb/5pq1/1rbk2p1/6B1/1P1PP3/6pB/Q7/4K3 w - - 0 1)

Radomirovic, Miodrag

The Problemist, 2017

N2N2nb/5pq1/1rbk2p1/6B1/1P1PP3/6pB/Q7/4K3

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Sxf7#
    • 1...Qe5
      • 2.Sxf7#
    • 1...Qh6
      • 2.Sxf7#
    • 1...Ba4
      • 2.Qd5#
    • 1...Bb5
      • 2.Qd5#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bd7
      • 2.Qd5#
    • 1...Be8
      • 2.Qd5#
    • 1...f5
      • 2.Qe6#
    • 1...f6
      • 2.Qe6#
  • Tries
    • 1.Qxf7?
      • threat
        • 2.Qe6#
      • 1...Qxf7
        • 2.Sxf7#
      • 1...Qe5
        • 2.Qc7#
      • 1...Qf6
        • 2.Qc7#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bd7
        • 2.Qd5#
      • 1...Bxa8!
    • 1.Qc2?
      • threat
        • 2.Qc5#
      • 1...Qxd4
        • 2.Sxf7#
      • 1...Qe5
        • 2.Sxf7#
      • 1...Rb5
        • 2.Qxc6#
      • 1...f5!
    • 1.Qa7?
      • threat
        • 2.Qc7#
      • 1...Bxe4
        • 2.Qd7#
      • 1...Bxa8
        • 2.Qd7#
      • 1...Rb7
        • 2.Qc5#
      • 1...Bb7
        • 2.Qb8#
      • 1...f6
        • 2.Bf4#
      • 1...f5!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qc5#
      • 1...Qxd4
        • 2.Sxf7#
      • 1...f5
        • 2.Qe6#
      • 1...Qe5
        • 2.Sxf7#
      • 1...Rb5
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(g);N_GUARD,XP(E)::S(I),XP(f)
    • Q(g);N_GUARD,P_PINP(F)::S(I),XP(f)
    • Q(g);N_GUARD::S(I),XP(f)
    • B(c);N_GUARD::QAR1(B)
    • B(c);N_GUARD::QAR1(B),XB(c)
    • P(f);N_GUARD::QAR1(B)
  • Tries
    • Try
      • Q(B);XP(f)
      • Threat
        • QAR1(B)
      • Vars
        • Q(g);XQ(B)::S(I),XQ(g)
        • Q(g);N_GUARD,P_PINP(F)::QAB1(B)
        • Q(g);N_GUARD::QAB1(B)
        • B(c);N_GUARD::QAR1(B),XB(c)
        • B(c);N_GUARD::QAR1(B)
      • Refutation
        • B(c);XS(H)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • Q(g);N_GUARD,XP(E)::S(I),XP(f)
        • Q(g);N_GUARD,P_PINP(F)::S(I),XP(f)
        • R(b);N_GUARD::QAR1(B),XB(c)
      • Refutation
        • P(f);
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • B(c);N_GUARD,XP(F)::QAR1(B)
        • B(c);N_GUARD,XS(H)::QAR1(B)
        • R(b);OGATE::QAB1(B)
        • B(c);S_CUTR(b)::QAB(B)
        • P(f);S_CUTQ(g)::B(G)
      • Refutation
        • P(f);
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • Q(g);N_GUARD,XP(E)::S(I),XP(f)
      • P(f);N_GUARD::QAR1(B)
      • Q(g);N_GUARD,P_PINP(F)::S(I),XP(f)
      • R(b);N_GUARD::QAR1(B),XB(c)
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