MESON Chess Problem Database

Problem Display
PID: 108700 (8/Q1p1N3/1brP4/1P4N1/1P1k1P2/2p5/2P2K2/5B1b w - - 0 1)

Frantzov, Georgi M

Kovbasa, Oleg I

Shakhmatnaya kompozitsiya, 1992

8/Q1p1N3/1brP4/1P4N1/1P1k1P2/2p5/2P2K2/5B1b

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Se6#
    • 1...Bd5
      • 2.Sf5#
  • Tries
    • 1.Bd3?
      • threat
        • 2.Se6#
      • 1...Bd5
        • 2.Sf5#
      • 1...Rxd6!
    • 1.Qa1?
      • threat
        • 2.Qd1#
      • 1...Be4
        • 2.Se6#
      • 1...Bf3!
    • 1.Qa2?
      • threat
        • 2.Sf5#
      • 1...Rc4
        • 2.Qxc4#
      • 1...Be4
        • 2.Se6#
      • 1...Rc5!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qh8#
      • 1...Rxd6
        • 2.Sf5#
      • 1...Rc5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);SBLOCK::S(G)
    • B(a);SBLOCK::S(J)
  • Tries
    • Try
      • B(A);
      • Threat
        • S(G)
      • Vars
        • B(a);SBLOCK::S(J)
      • Refutation
        • R(e);XP(H)
    • Try
      • Q(I);N_PINB(d),P_PINP(b)
      • Threat
        • QAR(I)
      • Vars
        • B(a);SBLOCK::S(G)
      • Refutation
        • B(a);
    • Try
      • Q(I);N_PINB(d)
      • Threat
        • S(J)
      • Vars
        • R(e);N_GUARD::QAR1(I),XR(e)
        • B(a);SBLOCK::S(G)
      • Refutation
        • R(e);
  • Actual
    • Q(I);N_PINB(d)
    • Threat
      • QAB(I)
    • Vars
      • R(e);XP(H)::S(J)
      • R(e);::S(G)
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