MESON Chess Problem Database

Problem Display
PID: 180157 (2R4K/8/1r1N4/2B5/5pn1/N1k5/R1Pnp2Q/7b w - - 0 1)

Romanovskis, Vladimirs

Sachmatija, 2015

2R4K/8/1r1N4/2B5/5pn1/N1k5/R1Pnp2Q/7b

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Saxb5#
      • 2.Sdxb5#
    • 1...Ra6
      • 2.Sab5#
      • 2.Sdb5#
    • 1...Rc6
      • 2.Sab5#
      • 2.Sdb5#
    • 1...Sb3
      • 2.Sb1#
    • 1...Sf3
      • 2.Se4#
  • Tries
    • 1.Qxe2?
      • threat
        • 2.Qd3#
      • 1...Rxd6
        • 2.Sb5#
      • 1...Sf2
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Be4!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qd4#
      • 1...Rxd6
        • 2.Qa1#
      • 1...Sb3
        • 2.Sb1#
      • 1...Sf3
        • 2.Se4#
      • 1...Rb4
        • 2.Bd4#
      • 1...Sf2
        • 2.Qg7#
      • 1...Se3
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,S_CUTR(g)::S(D)
    • S(b);N_GUARD,S_CUTB(a)::S(F)
  • Tries
    • Try
      • Q(C);XP(c)
      • Threat
        • QAR1(C)
      • Vars
        • R(g);N_GUARD,XS(F)::S(D)
        • S(f);N_GUARD::QAB(C)
        • S(f);N_GUARD::QAB(C),XS(f)
      • Refutation
        • B(a);
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • R(g);N_GUARD,XS(F)::QAB(C)
      • S(b);N_GUARD,S_CUTR(g)::S(D)
      • S(b);N_GUARD,S_CUTB(a)::S(F)
      • R(g);SBLOCK::R(G)+B(E),DCHECK
      • S(f);OGATE::QAB(C)
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