MESON Chess Problem Database

Problem Display
PID: 231873 (4R3/b1p2p1K/8/rn3k1N/2pp3p/p1p1pPR1/4Q3/3n3B w - - 0 1)

Burda, Josef

Kudesnik, 2015

4R3/b1p2p1K/8/rn3k1N/2pp3p/p1p1pPR1/4Q3/3n3B

#2

7 + 13

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sg7+?
      • 1...Kf4
        • 2.Rg4#
      • 1...Kf6!
    • 1.Qxc4?
      • threat
        • 2.Qd3#
        • 2.Qd5#
        • 2.Qxf7#
      • 1...hxg3
        • 2.Qd5#
      • 1...Ra6
        • 2.Qd3#
        • 2.Qd5#
      • 1...Sb2
        • 2.Qd5#
        • 2.Qxf7#
      • 1...Sf2
        • 2.Qd5#
        • 2.Qxf7#
      • 1...d3
        • 2.Qxd3#
        • 2.Qd5#
        • 2.Qxf7#
        • 2.Qe4#
        • 2.Qf4#
        • 2.Qg4#
      • 1...c6
        • 2.Qd3#
        • 2.Qxf7#
      • 1...f6
        • 2.Qd3#
        • 2.Qd5#
        • 2.Qe6#
      • 1...Sd6!
    • 1.Qg2?
      • threat
        • 2.Rg5#
        • 2.Qh3#
      • 1...Sf2
        • 2.Rg5#
      • 1...h3
        • 2.Rg5#
        • 2.Qxh3#
      • 1...f6
        • 2.Qh3#
      • 1...hxg3!
  • Keys
    • 1.f4!
      • threat
        • 2.Be4#
        • 2.Rg5#
        • 2.Re5#
        • 2.Qg4#
      • 1...hxg3
        • 2.Be4#
        • 2.Re5#
      • 1...Sf2
        • 2.Rg5#
        • 2.Re5#
      • 1...Sd6
        • 2.Rg5#
        • 2.Qg4#
      • 1...f6
        • 2.Be4#
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(j);P-FLIGHT::R1(D)
      • Refutation
        • K(j);P-FLIGHT
    • Try
      • Q(B);XP(e)
      • Threat
        • DUALS(3)
      • Vars
        • P(g);XR(D)::QAR2(B)
      • Refutation
        • S(i);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::R1(D)
        • P(m);::QAB(B)
      • Refutation
        • P(g);XR(D)
  • Actual
    • P(C);
    • Threat
      • DUALS(4)
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