MESON Chess Problem Database

Problem Display
PID: 275800 (2R2b2/3ppP2/N2p4/p1PkP3/5Q2/3K4/8/8 w - - 0 1)

Labai, Zoltan

Svitek, Miroslav

Schach, 2024

2R2b2/3ppP2/N2p4/p1PkP3/5Q2/3K4/8/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Sc7#
    • 1...dxe5
      • 2.Qc4#
    • 1...e6
      • 2.Qd4#
      • 2.Qe4#
  • Tries
    • 1.Qf5?
      • threat
        • 2.e6#
      • 1...dxc5
        • 2.Rxc5#
      • 1...dxe5
        • 2.Qxd7#
      • 1...e6
        • 2.Qe4#
      • 1...Bg7!
    • 1.e6?
      • threat
        • 2.Qe4#
        • 2.Qf5#
      • 1...Kxe6
        • 2.Sc7#
      • 1...dxe6
        • 2.Qd4#
        • 2.Qe4#
      • 1...Bg7
        • 2.Qe4#
      • 1...dxc5!
  • Keys
    • 1.exd6!
      • threat
        • 2.Qe4#
      • 1...Ke6
        • 2.Sc7#
      • 1...e5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);N_GUARD,S_FLIGHT::S(E)
    • P(c);SBLOCK,XP(D)::QAB1(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR(B)+P(D)
      • Vars
        • P(c);OGATE,XP(C)::R1(G),XP(c)
        • P(c);OGATEB,P_SPINP(c),SBLOCK,XP(D)::QAR2(B),XP(d)
        • P(e);SBLOCK::QAB1(B)
      • Refutation
        • B(f);
    • Try
      • P(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);N_GUARD,S_FLIGHT,XP(D)::S(E)
        • B(f);::QAB1(B)
      • Refutation
        • P(c);XP(C)
  • Actual
    • P(D);XP(c)
    • Threat
      • QAB1(B)
    • Vars
      • K(b);N_GUARD,S_FLIGHT::S(E)
      • P(e);SBLOCK::QAB1(B)
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