MESON Chess Problem Database

Problem Display
PID: 244509 (5N1k/6bp/4Q2p/7K/8/8/8/8 w - - 0 1)

Fomichev, Evgeny Vasilevich

Kudesnik, 2011

5N1k/6bp/4Q2p/7K/8/8/8/8

#2

3 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5?
      • threat
        • 2.Qxh7#
      • 1...Bxf8
        • 2.Qxf8#
      • 1...Kg8!
    • 1.Qe7?
      • 1...Bxf8
        • 2.Qxf8#
      • 1...Ba1
        • 2.Qxh7#
      • 1...Bb2
        • 2.Qxh7#
      • 1...Bc3
        • 2.Qxh7#
      • 1...Bd4
        • 2.Qxh7#
      • 1...Be5
        • 2.Qxh7#
      • 1...Bf6
        • 2.Qxh7#
      • 1...Kg8!
    • 1.Qe8?
      • threat
        • 2.Sg6#
      • 1...Bxf8
        • 2.Qxf8#
      • 1...Ba1
        • 2.Se6#
      • 1...Bb2
        • 2.Se6#
      • 1...Bc3
        • 2.Se6#
      • 1...Bd4
        • 2.Se6#
      • 1...Be5
        • 2.Se6#
      • 1...Bf6
        • 2.Se6#
      • 1...Kg8!
  • Keys
    • 1.Qf7!
      • 1...Bxf8
        • 2.Qxf8#
      • 1...Ba1
        • 2.Qxh7#
      • 1...Bb2
        • 2.Qxh7#
      • 1...Bc3
        • 2.Qxh7#
      • 1...Bd4
        • 2.Qxh7#
      • 1...Be5
        • 2.Qxh7#
      • 1...Bf6
        • 2.Qxh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B),XP(c)
      • Vars
        • B(b);OGATE,XS(C)::QAR2(B),XB(b)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • B(b);OGATE,XS(C)::QAR2(B),XB(b)
        • B(b);OGATE::QAR1(B),XP(c)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR(B)+S(C),DCHECK
      • Vars
        • B(b);OGATE,P_SPINB(b),XS(C)::QAR2(B),XB(b)
        • B(b);N_GUARD::QAR(B)+S(C)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • B(b);OGATE,XS(C)::QAR2(B),XB(b)
      • B(b);OGATE::QAR1(B),XP(c)
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