MESON Chess Problem Database

Problem Display
PID: 189809 (1b6/3p4/3p1P2/3kp1K1/2RN4/8/B3P3/8 w - - 0 1)

Merenyi, Lajos

Magyar Sakkujsag, 1912

1b6/3p4/3p1P2/3kp1K1/2RN4/8/B3P3/8

#2

6 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Kf5?
      • threat
        • 2.e4#
      • 1...exd4
        • 2.Rc1#
        • 2.Rc2#
        • 2.Rc3#
        • 2.Rc7#
        • 2.Rc8#
      • 1...e4!
    • 1.Sb5?
      • 1...Ke6
        • 2.Rc6#
      • 1...Ba7
        • 2.Sc7#
      • 1...Bc7
        • 2.Sxc7#
      • 1...e4!
    • 1.Ra4+?
      • 1...Ke4
        • 2.Sc2#
        • 2.Sf5#
      • 1...Kc5!
    • 1.Rb4+?
      • 1...Ke4
        • 2.Sc2#
        • 2.Sf5#
      • 1...Kc5!
  • Keys
    • 1.Se6!
      • 1...Kxe6
        • 2.Rc6#
      • 1...dxe6
        • 2.e4#
      • 1...e4
        • 2.Rc5#
      • 1...Ba7
        • 2.Sc7#
      • 1...Bc7
        • 2.Sxc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • P(B)
      • Refutation
        • P(b);
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::B(A)+R(C)
        • B(e);N_GUARD::S(D)
        • B(e);N_GUARD::S(D),XB(e)
      • Refutation
        • P(b);
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT,XS(D)::B(A)+R(C)
      • P(d);SBLOCK,XS(D)::P(B)
      • P(b);SBLOCK::B(A)+R(C),DCHECK
      • B(e);N_GUARD::S(D)
      • B(e);N_GUARD::S(D),XB(e)
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