MESON Chess Problem Database

Problem Display
PID: 240413 (2B3nK/2R2b2/8/2pkPN1n/2p3N1/b1p1pPp1/3PQ3/1r6 w - - 0 1)

Labai, Zoltan

Variantim, 2011

2B3nK/2R2b2/8/2pkPN1n/2p3N1/b1p1pPp1/3PQ3/1r6

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...exd2
      • 2.Qe4#
  • Tries
    • 1.Se7+?
      • 1...Kd4
        • 2.Qxe3#
        • 2.dxe3#
      • 1...Sxe7!
    • 1.Rd7+?
      • 1...Ke6
        • 2.Rd3#
        • 2.Rd4#
        • 2.Rd6#
        • 2.Rd8#
      • 1...Kc6!
    • 1.dxe3?
      • threat
        • 2.e4#
      • 1...Sgf6
        • 2.Se7#
      • 1...Shf6!
    • 1.d3?
      • threat
        • 2.dxc4#
      • 1...cxd3
        • 2.Qxd3#
      • 1...Rb4!
  • Keys
    • 1.d4!
      • threat
        • 2.Sgxe3#
      • 1...cxd4
        • 2.Qxc4#
      • 1...cxd4 ep
        • 2.Qxd3#
      • 1...Bc1
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(d);OGATE,XP(A)::QAB1(B)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • S(k);XS(F)
    • Try
      • R(G);CHECK
      • Refutation
        • K(h);S_FLIGHT
    • Try
      • P(A);XP(d)
      • Threat
        • P(A)
      • Vars
        • S(k);N_GUARD::S(F)
      • Refutation
        • S(i);
    • Try
      • P(A);
      • Threat
        • P(A),XP(f)
      • Vars
        • P(f);OGATE,XP(A)::QAR2(B),XP(f)
      • Refutation
        • R(a);
  • Actual
    • P(A);
    • Threat
      • S(D),XP(d)
    • Vars
      • P(g);XP(A)::QAB1(B),XP(f)
      • P(f);EP,OGATEB,XP(A)::QAR2(B),XP(f)
      • B(b);N_GUARD::R1(G),XP(g)
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