MESON Chess Problem Database

Problem Display
PID: 172011 (8/8/5N2/3Q4/2B1p2n/2k5/1b4nR/1K2R2b w - - 0 1)

Apro, Laszlo

Lud, 1964

8/8/5N2/3Q4/2B1p2n/2k5/1b4nR/1K2R2b

#2

6 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Re3+?
      • 1...Kb4
        • 2.Qb5#
      • 1...Sxe3!
    • 1.Qa5+?
      • 1...Kd4
        • 2.Rxe4#
      • 1...Kxc4!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Sxe4#
      • 1...Kd2
        • 2.Qe3#
      • 1...Sxe1
        • 2.Sd5#
      • 1...Se3
        • 2.Rxe3#
      • 1...Sf4
        • 2.Rc2#
      • 1...e3
        • 2.Se4#

There are these versions: 172104

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(E)
      • Refutation
        • S(c);XR(B)
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);S_FLIGHT::R1(B),XP(e)
      • Refutation
        • K(d);P-FLIGHT,XB(D)
  • Actual
    • Q(E);
    • Threat
      • S(F),XP(e)
    • Vars
      • K(d);P_SPINS(c),S_FLIGHT::QAB1(E)
      • S(c);XR(B)::S(F)
      • S(c);N_GUARD::R(B),XS(c)
      • S(c);OGATE::R1(C)
      • P(e);::S(F)
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