MESON Chess Problem Database

Problem Display
PID: 174190 (8/8/4p3/3NP3/1P1k1P2/1P1p2K1/6Q1/8 w - - 0 1)

Buchner, Richard

Promadas, 1930

8/8/4p3/3NP3/1P1k1P2/1P1p2K1/6Q1/8

#2

7 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3?
      • 1...Ke3
        • 2.Qf2#
      • 1...d2
        • 2.Qxd2#
      • 1...Kxc3!
    • 1.Sf6?
      • 1...Ke3
        • 2.Qf2#
      • 1...d2
        • 2.Qxd2#
      • 1...Kc3!
  • Keys
    • 1.Kf3!
      • 1...Kxd5
        • 2.Ke3#
      • 1...exd5
        • 2.Qb2#
      • 1...d2
        • 2.Qxd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • S(F);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • K(C);P-FLIGHT
    • Vars
      • K(b);P-FLIGHT,XS(F)::QAB(A)+K(C)
      • P(c);SBLOCK,XS(F)::QAB(A)
      • P(a);OGATEB::QAR2(A),XP(a)
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