MESON Chess Problem Database

Problem Display
PID: 183095 (6n1/8/1B6/1P2p1K1/2p1k3/8/8/3QN2b w - - 0 1)

Cech, V

Narodni Politika, 1907

6n1/8/1B6/1P2p1K1/2p1k3/8/8/3QN2b

#2

5 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3
      • 2.Qxf3#
    • 1...c3
      • 2.Qd3#
  • Tries
    • 1.Qa4?
      • threat
        • 2.Qxc4#
        • 2.Qa8#
      • 1...Sf6
        • 2.Qxc4#
      • 1...Se7
        • 2.Qxc4#
      • 1...Kd5!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sf2#
      • 1...Kd5
        • 2.Sc5#
      • 1...cxd3
        • 2.Qxh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAB1(A),XB(a)
    • P(b);N_GUARD::QAB1(A)
  • Tries
    • Try
      • Q(A);P_PINP(b)
      • Threat
        • DUALS(2)
      • Vars
        • S(e);::QAR2(A),XP(b)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • K(c);S_FLIGHT::QAR(A)+S(B)
      • P(b);SBLOCK,XS(B)::QAB(A),XB(a)
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Developed and maintained by Brian Stephenson.
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