MESON Chess Problem Database

Problem Display
PID: 269852 (4R3/5Q2/3p1P2/3pq1p1/3pp1P1/4k1p1/3N2P1/B2K1R2 w - - 0 1)

Tompuri, Ismo

Tehtavaniekka, 2020

4R3/5Q2/3p1P2/3pq1p1/3pp1P1/4k1p1/3N2P1/B2K1R2

#2

9 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Qa7?
      • 1...Kd3
        • 2.Qa3#
      • 1...Qxe8
        • 2.Qxd4#
      • 1...Qf4
        • 2.Qxd4#
      • 1...Qf5
        • 2.Qxd4#
      • 1...Qe6
        • 2.Qxd4#
      • 1...Qe7
        • 2.Qxd4#
      • 1...Qxf6!
  • Keys
    • 1.Qxd5!
      • 1...Kd3
        • 2.Qb3#
      • 1...Qxf6
        • 2.Qxe4#
      • 1...Qxd5
        • 2.Rf3#
      • 1...Qxe8
        • 2.Qxd4#
      • 1...Qf4
        • 2.Qxd4#
      • 1...Qf5
        • 2.Qxd4#
      • 1...Qe6
        • 2.Qxd4#
      • 1...Qe7
        • 2.Qxd4#
      • 1...d3
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);P_PINP(c)
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT,S_CUTP(c)::QAR(H)
        • Q(f);N_GUARD,XR(I)::QAB1(H),XP(c)
        • Q(f);N_GUARD::QAB1(H),XP(c)
      • Refutation
        • Q(f);XP(G)
  • Actual
    • Q(H);XP(e)
    • Vars
      • K(a);P-FLIGHT,P_SPINP(c)::QAR2(H)
      • Q(f);N_GUARD,P_SPINP(d),XP(G)::QAR1(H),XP(d)
      • Q(f);P_SPINP(d),XQ(H)::R1(C)
      • Q(f);N_GUARD,XR(I)::QAB1(H),XP(c)
      • Q(f);N_GUARD,P_SPINP(d)::QAB1(H),XP(c)
      • Q(f);N_GUARD::QAB1(H),XP(c)
      • P(c);::S(D)
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