MESON Chess Problem Database

Problem Display
PID: 225815 (K7/2p5/5P2/3kPQ2/p3p3/1N6/1N2B1R1/2r3B1 w - - 0 1)

Ulanov, Lev

Praca, 1992

K7/2p5/5P2/3kPQ2/p3p3/1N6/1N2B1R1/2r3B1

#2

9 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qe6#
    • 1...e3
      • 2.Bf3#
  • Tries
    • 1.Bh2?
      • threat
        • 2.Qd7#
      • 1...Kc6
        • 2.Qe6#
      • 1...Rc6
        • 2.e6#
      • 1...e3
        • 2.Bf3#
      • 1...axb3!
    • 1.Bd4?
      • threat
        • 2.Qd7#
      • 1...Kc6
        • 2.Qe6#
      • 1...e3
        • 2.Bf3#
      • 1...Rc6!
    • 1.Bc4+?
      • 1...Kc6
        • 2.Sa5#
        • 2.Qe6#
      • 1...Rxc4!
    • 1.Rg5?
      • threat
        • 2.Qd7#
      • 1...Kc6
        • 2.Qe6#
      • 1...e3
        • 2.Bf3#
      • 1...Rc6!
  • Keys
    • 1.Bg4!
      • threat
        • 2.Qe6#
      • 1...Kc6
        • 2.Qd7#
      • 1...Rc6
        • 2.Rd2#
      • 1...e3
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::QAR2(G)
    • P(c);OGATEB::B(C)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAR2(G)
      • Vars
        • K(d);S_FLIGHT::QAR2(G)
        • R(a);SBLOCK::QAR(G)+P(F)
        • P(c);OGATEB::B(C)
      • Refutation
        • P(b);XS(E)
    • Try
      • B(A);
      • Threat
        • QAR2(G)
      • Vars
        • K(d);S_FLIGHT::QAR2(G)
        • P(c);OGATEB::B(C)
      • Refutation
        • R(a);
    • Try
      • B(C);CHECK
      • Refutation
        • R(a);XB(C)
    • Try
      • R(D);
      • Threat
        • QAR2(G)
      • Vars
        • K(d);S_FLIGHT::QAR2(G)
        • P(c);OGATEB::B(C)
      • Refutation
        • R(a);
  • Actual
    • B(C);
    • Threat
      • QAB1(G)
    • Vars
      • K(d);S_FLIGHT::QAB1(G)
      • R(a);SBLOCK::R(D)
      • P(c);OGATEB::B(C)
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