MESON Chess Problem Database

Problem Display
PID: 244558 (4q3/3nn3/1p1Q1p2/3b3p/2pkN3/4RpR1/3B4/7K w - - 0 1)

Buglos, Janos

Nepszava, 1940

4q3/3nn3/1p1Q1p2/3b3p/2pkN3/4RpR1/3B4/7K

#2

6 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Qxf6#
    • 1...Se5
      • 2.Qxb6#
    • 1...Sb8
      • 2.Qxf6#
    • 1...Sf8
      • 2.Qxf6#
    • 1...f2
      • 2.Bc3#
  • Tries
    • 1.Qxf6+?
      • 1...Se5
        • 2.Qxb6#
      • 1...Sxf6!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Sb5#
      • 1...f2+
        • 2.Re4#
      • 1...Sc5
        • 2.Qxf6#
      • 1...Se5
        • 2.Qxb6#
      • 1...Sb8
        • 2.Qxb6#
      • 1...Sf8
        • 2.Qxb6#
      • 1...b5
        • 2.Sxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD::QAB(F),XP(g)
    • S(h);N_GUARD,SBLOCK::QAB(F),XP(f)
    • P(a);P_PINS(E)::B(B)
  • Tries
    • Try
      • Q(F);CHECK,N_PINB(d),XP(g)
      • Vars
        • S(h);N_GUARD,P_SPINS(h),SBLOCK::QAB(F),XP(f)
      • Refutation
        • S(h);XQ(F)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • P(a);CHECK::R1(C)
      • S(h);N_GUARD,SBLOCK::QAB(F),XP(g)
      • S(h);N_GUARD::QAB(F),XP(f)
      • P(f);::S(E),XP(f)
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