MESON Chess Problem Database

Problem Display
PID: 221800 (1BK2Q2/R6P/6pP/1P2N1k1/2P2N2/3P4/7P/3B4 w - - 0 1)

Krug, Peter

ChessStar, 2015

1BK2Q2/R6P/6pP/1P2N1k1/2P2N2/3P4/7P/3B4

#2

13 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bh5?
      • threat
        • 2.Sf3#
      • 1...Kh4
        • 2.Sf3#
      • 1...gxh5!
    • 1.Rg7?
      • 1...Kxh6
        • 2.Sf7#
      • 1...Kh4!
    • 1.Qf6+?
      • 1...Kxh6
        • 2.Sg4#
        • 2.Qh4#
        • 2.Qxg6#
        • 2.h8Q#
        • 2.h8R#
      • 1...Kxf6!
    • 1.Qf7?
      • 1...Kxh6
        • 2.Qxg6#
      • 1...Kh4!
    • 1.Qd8+?
      • 1...Kf5
        • 2.Rf7#
      • 1...Kxh6
        • 2.Sg4#
        • 2.Qh4#
        • 2.h8Q#
        • 2.h8R#
      • 1...Kxf4!
  • Keys
    • 1.Qc5!
      • 1...Kxf4
        • 2.Sg4#
        • 2.Sc6#
        • 2.Sxg6#
        • 2.Sd7#
        • 2.Sf7#
      • 1...Kh4
        • 2.Sexg6#
      • 1...Kf5
        • 2.Sg4#
        • 2.Sd7#
      • 1...Kf6
        • 2.Sg4#
      • 1...Kxh6
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Threat
        • S(G)
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • P(b);XB(A)
    • Try
      • R(I);P_PINP(b)
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT,XP(H)::S(G)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(M);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(M)
    • Try
      • Q(M);
      • Vars
        • K(a);S_FLIGHT,XP(H)::QAR1(M),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(M);CHECK
      • Vars
        • K(a);P-FLIGHT::R(I)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
  • Actual
    • Q(M);
    • Vars
      • K(a);S_FLIGHT::S(G),XP(b)
      • K(a);S_FLIGHT::S(G)
      • K(a);S_FLIGHT,XP(H)::S(G)
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