MESON Chess Problem Database

Problem Display
PID: 108480 (5K2/B6Q/P2pPp2/1b1kp3/q2NR1B1/1P1pP3/8/8 w - - 0 1)

Yakovlev, Yuri Nikolayevich

Canadian Chess Chat, 1984

5K2/B6Q/P2pPp2/1b1kp3/q2NR1B1/1P1pP3/8/8

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rxe5+?
      • 1...Kxe5
        • 2.Qf5#
      • 1...fxe5
        • 2.e4#
      • 1...dxe5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Se7#
      • 1...Kxe4
        • 2.Qh1#
      • 1...Kc6
        • 2.Qb7#
      • 1...Kxe6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK,XP(e)
      • Vars
        • K(d);P-FLIGHT,XR(D)::QAR1(I)
        • P(g);SBLOCK,XR(D)::P(B)
      • Refutation
        • P(f);XR(D)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(D)::QAB(I)
      • K(d);S_FLIGHT::QAB1(I)
      • K(d);OGATEB,P_SPINP(e),S_FLIGHT,XP(G)::QAB1(I)
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