MESON Chess Problem Database

Problem Display
PID: 227871 (8/5p2/5p2/7Q/3Kpk2/4R3/8/8 w - - 0 1)

Zilahi, Zoltan

Magyar Sakkvilag, 1926

8/5p2/5p2/7Q/3Kpk2/4R3/8/8

#2

3 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Qh4#
  • Tries
    • 1.Ra3?
      • 1...f5
        • 2.Qh4#
      • 1...e3!
    • 1.Rb3?
      • 1...f5
        • 2.Qh4#
      • 1...e3!
    • 1.Rc3?
      • 1...f5
        • 2.Qh4#
      • 1...e3!
    • 1.Rg3?
      • threat
        • 2.Qg4#
      • 1...f5
        • 2.Qh4#
        • 2.Qg5#
      • 1...Kxg3!
    • 1.Qg6?
      • 1...f5
        • 2.Qg3#
      • 1...fxg6!
    • 1.Qh3?
      • 1...f5
        • 2.Qg3#
        • 2.Qh4#
      • 1...Kg5!
  • Keys
    • 1.Rh3!
      • 1...e3
        • 2.Rf3#
      • 1...f5
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR2(C)
  • Tries
    • Try
      • R(A);
      • Vars
        • P(c);SBLOCK::QAR2(C)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Vars
        • P(c);SBLOCK::QAR2(C)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Vars
        • P(c);SBLOCK::QAR2(C)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Threat
        • QAR1(C)
      • Refutation
        • K(b);S_FLIGHT,XR(A)
    • Try
      • Q(C);
      • Vars
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • P(d);XQ(C)
    • Try
      • Q(C);
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • P(a);N_GUARD::R1(A)
      • P(c);SBLOCK::QAR2(C)
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