MESON Chess Problem Database

Problem Display
PID: 241203 (1B5K/pR6/2kNp2Q/7p/PR1np3/5P2/B1P1p3/4r3 w - - 0 1)

Labai, Zoltan

Sachsische Zeitung, 2011

1B5K/pR6/2kNp2Q/7p/PR1np3/5P2/B1P1p3/4r3

#2

10 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Rc7#
  • Tries
    • 1.Sxe4?
      • threat
        • 2.Rc7#
      • 1...Sb3
        • 2.Qxe6#
      • 1...Sb5!
    • 1.R4b6+?
      • 1...Kc5
        • 2.Sxe4#
      • 1...axb6!
    • 1.Qe3?
      • threat
        • 2.Qc3#
      • 1...Kc5
        • 2.Qc3#
      • 1...Sb5
        • 2.axb5#
      • 1...Sb3!
    • 1.Qxe6?
      • threat
        • 2.Rc4#
        • 2.Rc7#
        • 2.Qc4#
        • 2.Qd5#
        • 2.Qc8#
      • 1...Kc5
        • 2.Sxe4#
        • 2.Rc4#
        • 2.Qc4#
        • 2.Qd5#
      • 1...Sb3
        • 2.Sxe4#
        • 2.Rc7#
      • 1...Sb5
        • 2.Rc4#
        • 2.Qc4#
        • 2.Qd5#
      • 1...Sxe6!
    • 1.fxe4?
      • threat
        • 2.Rc4#
      • 1...Kc5
        • 2.Rc4#
      • 1...Sb3!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qc3#
      • 1...Kc5
        • 2.Qc3#
      • 1...Sb3
        • 2.Rc7#
      • 1...Sb5
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(g);::R1(H)
  • Tries
    • Try
      • S(F);P_PINP(g),XP(d)
      • Threat
        • R1(H)
      • Vars
        • S(c);N_GUARD::QAR2(G),XP(g)
      • Refutation
        • S(c);
    • Try
      • R(E);CHECK
      • Vars
        • K(f);P-FLIGHT::S(F),XP(d)
      • Refutation
        • P(h);XR(E)
    • Try
      • Q(G);
      • Threat
        • QAR(G)
      • Vars
        • K(f);P-FLIGHT,P_SPINS(c)::QAR2(G)
        • S(c);OGATE::P(D),XS(c)
      • Refutation
        • S(c);
    • Try
      • Q(G);XP(g)
      • Threat
        • DUALS(5)
      • Refutation
        • S(c);XQ(G)
    • Try
      • P(C);XP(d)
      • Threat
        • R(E)
      • Vars
        • K(f);P-FLIGHT::R1(E)
      • Refutation
        • S(c);
  • Actual
    • Q(G);
    • Threat
      • QAR(G)
    • Vars
      • K(f);P-FLIGHT::QAR2(G)
      • S(c);::R1(H)
      • S(c);::R(E)
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