MESON Chess Problem Database

Problem Display
PID: 115394 (2Nk4/3n2N1/8/8/2Rb4/7B/K6B/2Q5 w - - 0 1)

Buchwald, Julius

Sjakk-Nytt, 1947

2Nk4/3n2N1/8/8/2Rb4/7B/K6B/2Q5

#2

7 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se5
      • 2.Qg5#
    • 1...Sb6
      • 2.Bc7#
    • 1...Sf6
      • 2.Bc7#
    • 1...Sb8
      • 2.Bc7#
    • 1...Sf8
      • 2.Bc7#
  • Tries
    • 1.Qg5+?
      • 1...Sf6
        • 2.Bc7#
        • 2.Rxd4#
      • 1...Bf6!
  • Keys
    • 1.Qd2!
      • 1...Bxg7
        • 2.Qxd7#
      • 1...Bc5
        • 2.Qxd7#
      • 1...Ba1
        • 2.Qxd7#
      • 1...Bg1
        • 2.Qxd7#
      • 1...Bb2
        • 2.Qxd7#
      • 1...Bf2
        • 2.Qxd7#
      • 1...Bc3
        • 2.Qxd7#
      • 1...Be3
        • 2.Qxd7#
      • 1...Be5
        • 2.Qxd7#
      • 1...Bb6
        • 2.Qxd7#
      • 1...Bf6
        • 2.Qxd7#
      • 1...Ba7
        • 2.Qxd7#
      • 1...Sc5
        • 2.Qa5#
      • 1...Se5
        • 2.Qg5#
      • 1...Sb6
        • 2.Bc7#
      • 1...Sf6
        • 2.Bc7#
      • 1...Sb8
        • 2.Bc7#
      • 1...Sf8
        • 2.Bc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,S_CUTB(a)::QAB(A)
    • S(b);::B(C)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • Q(A);
    • Vars
      • B(a);OGATE,P_SPINS(b),XS(F)::QAR1(A),XS(b)
      • B(a);OGATE,P_SPINS(b)::QAR1(A),XS(b)
      • S(b);N_GUARD,P_SPINB(a)::QAB(A)
      • S(b);P_SPINB(a)::B(C)
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