MESON Chess Problem Database

Problem Display
PID: 168339 (8/rb4Rp/3p2P1/5pB1/5Nk1/2r2NP1/2Q2P2/b5K1 w - - 0 1)

Petite, Efren

Hlas l'udu, 1993

8/rb4Rp/3p2P1/5pB1/5Nk1/2r2NP1/2Q2P2/b5K1

#2

9 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf3
      • 2.Qe2#
  • Tries
    • 1.Bf6?
      • threat
        • 2.Sh2#
      • 1...Kxf3
        • 2.Qe2#
      • 1...Rxf3
        • 2.gxh7#
      • 1...Bxf3!
    • 1.Be7?
      • threat
        • 2.Sh2#
      • 1...Kxf3
        • 2.Qe2#
      • 1...Bxf3
        • 2.gxh7#
      • 1...Rxf3!
  • Keys
    • 1.gxh7!
      • threat
        • 2.Sh2#
      • 1...Kxf3
        • 2.Qe2#
      • 1...Rxf3
        • 2.Bf6#
      • 1...Bxf3
        • 2.Be7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
  • Tries
    • Try
      • B(G);
      • Threat
        • S(D)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
        • R(b);SBLOCK,XS(D)::R(I)+P(H),XP(h)
      • Refutation
        • B(g);XS(D)
    • Try
      • B(G);
      • Threat
        • S(D)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
        • B(g);SBLOCK,XS(D)::R(I)+P(H),XP(h)
      • Refutation
        • R(b);XS(D)
  • Actual
    • P(H);XP(h)
    • Threat
      • S(D)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • R(b);SBLOCK,XS(D)::R(I)+B(G)
      • B(g);SBLOCK,XS(D)::R(I)+B(G)
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