MESON Chess Problem Database

Problem Display
PID: 17228 (NB6/R1Pk4/p7/rp5p/pK2R1rP/P3N2B/8/8 w - - 0 1)

Beck, Gyula

1st HM., Magyar Sakkvilag, 1925

NB6/R1Pk4/p7/rp5p/pK2R1rP/P3N2B/8/8

#2

10 + 7

3242 BCPS Rapid Solving (Cheltenham) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.c8Q#
      • 2.c8R#
    • 1...Kd6
      • 2.c8Q#
      • 2.c8R#
    • 1...Kc8
      • 2.Sb6#
  • Tries
    • 1.Kc3?
      • 1...Kc6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kd6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc8
        • 2.Sb6#
      • 1...b4+!
    • 1.Kxa5?
      • 1...Kc6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kd6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc8
        • 2.Sb6#
      • 1...b4!
    • 1.Kc5?
      • threat
        • 2.Sb6#
      • 1...Kc8
        • 2.Sb6#
      • 1...b4+!
    • 1.Sb6+?
      • 1...Kd6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc6!
    • 1.Bxg4+?
      • 1...Kc6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kd6
        • 2.c8Q#
        • 2.c8R#
      • 1...hxg4!
    • 1.Rb7?
      • 1...Kc6
        • 2.c8Q#
      • 1...Kd6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kc8!
  • Keys
    • 1.Rf4!
      • 1...Kc6
        • 2.c8Q#
        • 2.c8R#
      • 1...Kd6
        • 2.c8Q#
      • 1...Ke6
        • 2.c8Q#
        • 2.c8B#
      • 1...Ke7
        • 2.c8Q#
      • 1...Kc8
        • 2.Sb6#
      • 1...Ke8
        • 2.c8Q#
        • 2.c8R#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(g);N_SPINR(b),S_FLIGHT::P=Q
    • K(g);N_SPINR(b),P-FLIGHT::P=Q
    • K(g);S_FLIGHT::S(I)
  • Tries
    • Try
      • K(D);N_SPINR(E),S_FLIGHT
      • Vars
        • K(g);N_SPINR(b),S_FLIGHT::P=Q
        • K(g);N_SPINR(b),P-FLIGHT::P=Q
        • K(g);S_FLIGHT::S(I)
      • Refutation
        • P(d);CHECK
    • Try
      • K(D);N_SPINR(E),S_FLIGHT,XR(c)
      • Vars
        • K(g);N_SPINR(b),S_FLIGHT::P=Q
        • K(g);N_SPINR(b),P-FLIGHT::P=Q
        • K(g);S_FLIGHT::S(I)
      • Refutation
        • P(d);
    • Try
      • K(D);N_SPINR(E),S_FLIGHT
      • Threat
        • S(I)
      • Vars
        • K(g);S_FLIGHT::S(I)
      • Refutation
        • P(d);CHECK
    • Try
      • S(I);CHECK
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT::P=Q
      • Refutation
        • K(g);N_SPINR(b),S_FLIGHT
    • Try
      • B(C);CHECK,N_SPINR(E),XR(b)
      • Vars
        • K(g);S_FLIGHT::P=Q
        • K(g);P-FLIGHT::P=Q
      • Refutation
        • P(e);XB(C)
    • Try
      • R(G);
      • Vars
        • K(g);N_SPINR(b),S_FLIGHT::P=Q
        • K(g);N_SPINR(b),P-FLIGHT::P=Q
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • R(E);
    • Vars
      • K(g);N_SPINR(b),S_FLIGHT::P=Q
      • K(g);N_SPINR(b),P-FLIGHT::P=Q
      • K(g);S_FLIGHT::P=Q
      • K(g);S_FLIGHT::S(I)
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