MESON Chess Problem Database

Problem Display
PID: 67022 (8/2P1r3/1KN3nr/2PkP3/3p2Qb/3P4/5p2/6n1 w - - 0 1)

Robert, Philippe

Troll, 2001

8/2P1r3/1KN3nr/2PkP3/3p2Qb/3P4/5p2/6n1

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Sb4#
      • 2.Qd7#
    • 1...Re6
      • 2.Qxd4#
      • 2.Qe4#
    • 1...Rd7
      • 2.Qxd7#
    • 1...Re8
      • 2.Qd7#
  • Tries
    • 1.Qf5?
      • threat
        • 2.Sb4#
      • 1...Re6
        • 2.Qe4#
      • 1...Sf4
        • 2.e6#
      • 1...Sf8
        • 2.e6#
      • 1...Sh8
        • 2.e6#
      • 1...Sxe5!
  • Keys
    • 1.e6!
      • threat
        • 2.Qe4#
      • 1...Rxe6
        • 2.Qxd4#
      • 1...Sf4
        • 2.Qf5#
      • 1...Se5
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(h);N_GUARD::QAR2(B),XR(h)
    • R(h);N_GUARD::QAR2(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • S(F)
      • Vars
        • R(h);P_PINS(F),SBLOCK::QAB1(B)
        • S(f);N_GUARD,P_PINS(F)::QAR(B)+P(D)
      • Refutation
        • S(f);P_PINS(F),P_SPINS(f),XP(D)
  • Actual
    • P(D);
    • Threat
      • QAB1(B)
    • Vars
      • R(h);P_PINS(F),SBLOCK,XP(D)::QAR1(B),XP(c)
      • S(f);N_GUARD::QAR2(B)
      • S(f);SBLOCK::S(F)
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