MESON Chess Problem Database

Problem Display
PID: 236567 (8/4p2Q/5p1n/R4q2/4knRK/8/4P3/6B1 w - - 0 1)

Heyl, Peter

Rochade Europa, 2013

8/4p2Q/5p1n/R4q2/4knRK/8/4P3/6B1

#2

6 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qg6
      • 2.Qxe7#
    • 1...Sxg4
      • 2.Qxf5#
    • 1...Sf7
      • 2.Qxf5#
    • 1...Sg8
      • 2.Qxf5#
    • 1...e5
      • 2.Qb7#
  • Tries
    • 1.Qxe7+?
      • 1...Qe6
        • 2.Qxe6#
      • 1...Qe5!
  • Keys
    • 1.Kg3!
      • threat
        • 2.Rxf4#
      • 1...Sxg4
        • 2.Qxf5#
      • 1...Qg6
        • 2.Qxe7#
      • 1...e5
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • Q(c);N_GUARD::QAR(F),XP(f)
    • S(e);N_GUARD,N_SPINS(b),XR(C)::QAB1(F),XQ(c)
    • S(e);N_GUARD::QAB1(F),XQ(c)
    • P(f);OGATE::QAB(F)
  • Tries
    • Try
      • Q(F);CHECK,N_PINQ(c),XP(f)
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::QAR2(F),XQ(c)
      • Refutation
        • Q(c);P_SPINQ(c)
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • R1(C),XS(b)
    • Vars
      • S(e);N_GUARD,N_SPINS(b),XR(C)::QAB1(F),XQ(c)
      • Q(c);N_GUARD,P_PINR(C)::QAR(F),XP(f)
      • P(f);OGATE::QAB(F)
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