MESON Chess Problem Database

Problem Display
PID: 226530 (k1K1N3/pp2p3/n3p3/1p5b/1Q2p3/2p5/5pr1/8 w - - 0 1)

Salai (Snr), Ladislav

Sachova skladba, 2004

k1K1N3/pp2p3/n3p3/1p5b/1Q2p3/2p5/5pr1/8

#2

3 + 12

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sxb4
      • 2.Sc7#
    • 1...Sc5
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
    • 1...Sb8
      • 2.Sc7#
    • 1...b6
      • 2.Qxe4#
  • Tries
    • 1.Qxe7?
      • threat
        • 2.Qxb7#
      • 1...Sc5
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...b6
        • 2.Qb7#
      • 1...Rg7!
    • 1.Qxe4?
      • threat
        • 2.Qxb7#
      • 1...Sc5
        • 2.Sc7#
      • 1...Bf3!
  • Keys
    • 1.Qxb5!
      • threat
        • 2.Qxb7#
      • 1...Sc5
        • 2.Sc7#
      • 1...b6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • S(g);N_GUARD,XQ(A)::S(C)
    • S(g);N_GUARD::S(C)
    • S(g);N_GUARD::S(C),XS(g)
    • P(j);OGATEB::QAB(A),XP(d)
  • Tries
    • Try
      • Q(A);XP(k)
      • Threat
        • QAB1(A),XP(j)
      • Vars
        • S(g);N_GUARD::S(C)
        • S(g);N_GUARD::S(C),XS(g)
        • P(j);::QAB1(A)
      • Refutation
        • R(b);
    • Try
      • Q(A);P_PINP(j),XP(d)
      • Threat
        • QAB1(A),XP(j)
      • Vars
        • S(g);N_GUARD::S(C)
      • Refutation
        • B(f);
  • Actual
    • Q(A);XP(e)
    • Threat
      • QAB1(A),XP(j)
    • Vars
      • S(g);N_GUARD::S(C)
      • P(j);OGATEB::QAB(A)
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