MESON Chess Problem Database

Problem Display
PID: 136543 (1b2Rn2/nN3K2/1Q1PpP2/3Pkp2/1pP1P3/3p2Pb/5N2/3r4 w - - 0 1)

Ersek, Tibor

Source?, 2005

1b2Rn2/nN3K2/1Q1PpP2/3Pkp2/1pP1P3/3p2Pb/5N2/3r4

#2

11 + 10

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Sg6
      • 2.Rxe6#
    • 1...Sd7
      • 2.Rxe6#
    • 1...Sh7
      • 2.Rxe6#
  • Tries
    • 1.Qc5?
      • threat
        • 2.dxe6#
      • 1...Sd7
        • 2.Rxe6#
      • 1...Bxd6!
  • Keys
    • 1.dxe6!
      • threat
        • 2.Qc5#
      • 1...Bxd6
        • 2.Qxd6#
      • 1...Sd7
        • 2.exd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • S(j);N_GUARD::R1(K),XP(g)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAR(F)+P(E),XP(g)
      • Vars
        • S(j);N_GUARD::R1(K),XP(g)
      • Refutation
        • B(i);XP(G)
  • Actual
    • P(E);XP(g)
    • Threat
      • QAR2(F)
    • Vars
      • B(i);OGATE,XP(G)::QAB1(F),XB(i)
      • S(j);OGATE::R(K)+P(E),XS(j)
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