MESON Chess Problem Database

Problem Display
PID: 238569 (5K1B/2P5/2r1P1bp/2P2k2/p2RNP2/1B6/8/2R3Q1 w - - 0 1)

Labai, Zoltan

Problemist Ukraini, 2009

5K1B/2P5/2r1P1bp/2P2k2/p2RNP2/1B6/8/2R3Q1

#2

11 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Rf1#
    • 1...Rxc5
      • 2.Sd6#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Rxc7
      • 2.Sd6#
    • 1...h5
      • 2.Qg5#
  • Tries
    • 1.Sf2?
      • threat
        • 2.Qg4#
      • 1...h5
        • 2.Qg5#
      • 1...Bh5!
    • 1.Sg5?
      • threat
        • 2.Bc2#
      • 1...Rxc5
        • 2.Rxc5#
      • 1...Rxe6
        • 2.Bxe6#
      • 1...hxg5
        • 2.Qxg5#
      • 1...axb3!
    • 1.Sf6?
      • threat
        • 2.Qg4#
      • 1...h5
        • 2.Qg5#
      • 1...Bh5!
  • Keys
    • 1.Bc2!
      • threat
        • 2.Sg5#
      • 1...Kxf4
        • 2.Rf1#
      • 1...Kxe6
        • 2.Qxg6#
      • 1...Rxc5
        • 2.Sxc5#
      • 1...Rxe6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • K(b);OGATEB,P-FLIGHT,XP(F)::R(A)
    • R(c);N_GUARD,XP(G)::S(E)
    • R(c);N_GUARD::S(E),XR(c)
    • R(c);N_GUARD,XP(I)::S(E)
    • P(e);N_GUARD::QAR1(B)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(B)
      • Vars
        • P(e);N_GUARD::QAR1(B)
      • Refutation
        • B(d);
    • Try
      • S(E);
      • Threat
        • B(C)
      • Vars
        • R(c);OGATE,XP(G)::R(A),XR(c)
        • R(c);OGATE,XP(H)::B(C),XR(c)
        • P(e);OGATE,XS(E)::QAR1(B),XP(e)
      • Refutation
        • P(a);XB(C)
    • Try
      • S(E);
      • Threat
        • QAB1(B)
      • Vars
        • P(e);N_GUARD::QAR1(B)
      • Refutation
        • B(d);
  • Actual
    • B(C);
    • Threat
      • B(C)+S(E)
    • Vars
      • K(b);OGATEB,P-FLIGHT,XP(F)::R(A)
      • K(b);S_FLIGHT,XP(H)::QAR2(B),XB(d)
      • R(c);XP(G)::B(C)+S(E),XR(c)
      • R(c);SBLOCK,XP(H)::B(C)+S(E),DCHECK
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