MESON Chess Problem Database

Problem Display
PID: 110264 (2Rn4/6Nn/r2p4/4NK1Q/3k2P1/BP2R3/4bP2/2b4B w - - 0 1)

Lacny, Ludovit

01. WCCT, 1973

2Rn4/6Nn/r2p4/4NK1Q/3k2P1/BP2R3/4bP2/2b4B

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Bxb2#
    • 1...Bxe3
      • 2.Bb2#
    • 1...Bd1
      • 2.Rd3#
      • 2.Rc4#
    • 1...Bd3+
      • 2.Rxd3#
    • 1...Bf3
      • 2.Rd3#
    • 1...Bc4
      • 2.Rxc4#
    • 1...Bxg4+
      • 2.Qxg4#
    • 1...Sc6
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
    • 1...Sb7
      • 2.Se6#
    • 1...Sf7
      • 2.Se6#
    • 1...dxe5
      • 2.Bc5#
    • 1...d5
      • 2.Bc5#
  • Tries
    • 1.Sc6+?
      • 1...Sxc6
        • 2.Se6#
      • 1...Rxc6!
  • Keys
    • 1.Kf4!
      • threat
        • 2.Sf5#
      • 1...Bxe3+
        • 2.fxe3#
      • 1...Se6+
        • 2.Sxe6#
      • 1...dxe5+
        • 2.Qxe5#
      • 1...Bxg4
        • 2.Rc4#
      • 1...Bf3
        • 2.Sxf3#
      • 1...Bd3
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • B(a);N_GUARD::B(C),XB(a)
    • B(a);N_GUARD,XR(E)::B(C)
    • B(b);CHECK,N_GUARD::R1(E),XB(b)
    • B(b);N_GUARD::R1(E)
    • B(b);N_GUARD::R1(K),XB(b)
    • B(b);CHECK,OGATE,XP(F)::QAR(I),XB(b)
    • S(g);N_GUARD::S(J)
    • S(g);N_GUARD::S(J),XS(g)
    • P(e);N_GUARD,XS(G)::B(C)
    • P(e);N_GUARD::B(C)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • S(g);XS(G)::S(J)
      • Refutation
        • R(d);XS(G)
  • Actual
    • K(H);P-FLIGHT,P_SPINR(E)
    • Threat
      • S(J)
    • Vars
      • B(a);CHECK,OGATE,XR(E)::P(B),XB(a)
      • S(g);CHECK,N_GUARD::S(J),XS(g)
      • P(e);CHECK,OGATE,XS(G)::QAB1(I),XP(e)
      • B(b);N_GUARD,XP(F)::R1(K)
      • B(b);N_GUARD::S(G),XB(b)
      • B(b);N_GUARD::S(G)
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