MESON Chess Problem Database

Problem Display
PID: 201576 (5Q2/6pr/3pp1B1/pnB1k2p/1N4p1/8/6K1/8 w - - 0 1)

Votruba, Otakar

Ceskoslovenska republika, 1922

5Q2/6pr/3pp1B1/pnB1k2p/1N4p1/8/6K1/8

#2

5 + 9

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Bxd6#
    • 1...d5
      • 2.Sd3#
      • 2.Sc6#
  • Tries
    • 1.Qe7?
      • threat
        • 2.Qg5#
      • 1...Kf4
        • 2.Sd3#
      • 1...Sd4
        • 2.Bxd6#
      • 1...dxc5!
    • 1.Qxg7+?
      • 1...Kf4
        • 2.Qf6#
      • 1...Rxg7!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qg5#
      • 1...Kf4
        • 2.Sd3#
      • 1...dxc5
        • 2.Sd3#
      • 1...Sd4
        • 2.Bxd6#

Anticipated by 175189(1902)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD,SBLOCK::B(C),XP(f)
  • Tries
    • Try
      • Q(E);P_PINP(g)
      • Threat
        • QAR2(E)
      • Vars
        • K(d);N_SPINP(g),S_FLIGHT::S(B)
        • S(c);N_GUARD,SBLOCK::B(C),XP(f)
      • Refutation
        • P(f);XB(C)
    • Try
      • Q(E);CHECK,XP(h)
      • Vars
        • K(d);S_FLIGHT::QAR2(E)
      • Refutation
        • R(i);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAR2(E)
    • Vars
      • K(d);S_FLIGHT::S(B)
      • P(f);XB(C)::S(B)
      • S(c);N_GUARD,SBLOCK::B(C),XP(f)
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