MESON Chess Problem Database

Problem Display
PID: 175644 (2Q5/K6p/BBN4r/3kP3/P7/8/4Pp2/4b3 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1900

2Q5/K6p/BBN4r/3kP3/P7/8/4Pp2/4b3

#2

8 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Se7+?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kxe5!
    • 1.Bd3?
      • threat
        • 2.e4#
      • 1...Rh4
        • 2.Qd7#
      • 1...Rxc6!
    • 1.Bc4+?
      • 1...Ke4
        • 2.Qg4#
      • 1...Kxc4!
    • 1.Qg8+?
      • 1...Kxc6
        • 2.Bb5#
      • 1...Re6
        • 2.Qg2#
      • 1...Ke4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Se7#
      • 1...Kxc6
        • 2.Bb7#
      • 1...Rxc6
        • 2.e4#
      • 1...Re6
        • 2.Qf3#
      • 1...Bb4
        • 2.Sxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(H)
      • Refutation
        • K(c);P-FLIGHT,XP(C)
    • Try
      • B(D);
      • Threat
        • P(A)
      • Vars
        • R(d);N_GUARD::QAR2(H)
      • Refutation
        • R(d);XS(F)
    • Try
      • B(D);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(H)
      • Refutation
        • K(c);S_FLIGHT,XB(D)
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(F)::B(D)
        • R(d);P_SPINR(d),SBLOCK::QAB(H)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(H);
    • Threat
      • S(F)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::B(D)
      • R(d);SBLOCK,XS(F)::P(A)
      • R(d);SBLOCK::QAB(H)
      • B(a);N_GUARD::S(F),XB(a)
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