MESON Chess Problem Database

Problem Display
PID: 202531 (8/5n2/7n/Q4p2/2pk4/R4pNR/1N6/2K5 w - - 0 1)

Hertmann, Sandor

Uj Nemezdek, 1923

8/5n2/7n/Q4p2/2pk4/R4pNR/1N6/2K5

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rh4+?
      • 1...f4
        • 2.Rxf4#
      • 1...Sg4!
    • 1.Qb6+?
      • 1...Kd5
        • 2.Ra5#
      • 1...Ke5!
  • Keys
    • 1.Re3!
      • 1...Kxe3
        • 2.Qd2#
      • 1...Sg4
        • 2.Sxf5#
      • 1...Sg8
        • 2.Sxf5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qe5#
      • 1...Sd6
        • 2.Qe5#
      • 1...Sd8
        • 2.Qe5#
      • 1...Sh8
        • 2.Qe5#
      • 1...f2
        • 2.Se2#
      • 1...c3
        • 2.Rd3#
      • 1...f4
        • 2.Re4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • P(d);P_SPINP(d)::R(E),XP(d)
      • Refutation
        • S(e);P_SPINS(e)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);P-FLIGHT::R(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(c);S_FLIGHT,XR(C)::QAB1(F)
      • S(e);N_GUARD::S(D),XP(d)
      • S(f);N_GUARD::QAB1(F),XS(f)
      • S(f);N_GUARD::QAB1(F)
      • P(a);N_GUARD::S(D)
      • P(b);N_GUARD::R1(C)
      • P(d);N_GUARD::R1(C)
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