MESON Chess Problem Database

Problem Display
PID: 175106 (5K2/p7/3B2p1/3P1kp1/2N3Np/r4q1B/4P3/7Q w - - 0 1)

Mazel, Frantisek

Sachove listy, 1902

5K2/p7/3B2p1/3P1kp1/2N3Np/r4q1B/4P3/7Q

#2

8 + 7

15 British Chess Magazine 1911
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd5
      • 2.Qxd5#
    • 1...Qf1
      • 2.e4#
    • 1...Qf2
      • 2.e4#
    • 1...Qb3
      • 2.e4#
    • 1...Qc3
      • 2.e4#
    • 1...Qg3
      • 2.e4#
    • 1...Ra1
      • 2.Qxf3#
    • 1...Ra2
      • 2.Qxf3#
    • 1...Ra4
      • 2.Qxf3#
    • 1...Ra5
      • 2.Qxf3#
    • 1...Ra6
      • 2.Qxf3#
  • Tries
    • 1.Sge3+?
      • 1...Kf6
        • 2.Be5#
        • 2.Be7#
        • 2.Qxf3#
      • 1...Ke4+!
    • 1.Sh6+?
      • 1...Kf6
        • 2.Sg8#
        • 2.Be5#
        • 2.Be7#
      • 1...Ke4+!
  • Keys
    • 1.Be5!
      • threat
        • 2.Sd6#
      • 1...Ke4+
        • 2.Sf6#
      • 1...Qxg4
        • 2.e4#
      • 1...Qxd5
        • 2.Sge3#
        • 2.Sh6#
      • 1...Qxh3
        • 2.Sh6#
      • 1...Ra6
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • Q(b);OGATE,XP(F)::QAR2(A),XQ(b)
    • Q(b);N_GUARD::P(B)
    • R(a);N_GUARD::QAR2(A),XQ(b)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • K(d);CHECK,P_SPINQ(b),S_FLIGHT
    • Try
      • S(E);CHECK
      • Refutation
        • K(d);CHECK,P_SPINQ(b),S_FLIGHT
  • Actual
    • B(G);
    • Threat
      • S(D)
    • Vars
      • K(d);CHECK,P_SPINQ(b),S_FLIGHT::S(E)
      • Q(b);N_GUARD,P_SPINQ(b),XS(E)::P(B)
      • Q(b);XB(C)::S(E)
      • R(a);N_GUARD::QAR2(A),XQ(b)
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