MESON Chess Problem Database

Problem Display
PID: 237493 (8/8/2pK1P2/2PNpP1Q/2Rbkp1P/2P1p2P/8/2N5 w - - 0 1)

Labai, Zoltan

1st HM., Pravda (Bratislava), 2019

(First published on Thu Jul 4 2019)

8/8/2pK1P2/2PNpP1Q/2Rbkp1P/2P1p2P/8/2N5

#2

11 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Qg4#
  • Tries
    • 1.Kxc6?
      • 1...f3
        • 2.Qg4#
      • 1...e2!
    • 1.Ke6?
      • 1...e2
        • 2.Qxe2#
      • 1...f3
        • 2.Qg4#
      • 1...cxd5!
    • 1.Sxe3?
      • 1...Kxe3
        • 2.Qe2#
      • 1...fxe3
        • 2.Qg4#
      • 1...f3!
    • 1.Sb4?
      • 1...f3
        • 2.Qg4#
      • 1...e2!
    • 1.Sxf4?
      • 1...Kxf4
        • 2.Qg4#
      • 1...exf4
        • 2.Rxd4#
      • 1...e2!
    • 1.Sb6?
      • 1...f3
        • 2.Qg4#
      • 1...e2!
    • 1.Sc7?
      • 1...f3
        • 2.Qg4#
      • 1...e2!
    • 1.cxd4?
      • threat
        • 2.Sc3#
        • 2.dxe5#
      • 1...exd4
        • 2.Sc3#
      • 1...e2
        • 2.dxe5#
      • 1...f3
        • 2.Qg4#
        • 2.dxe5#
      • 1...cxd5!
  • Keys
    • 1.Se7!
      • 1...e2
        • 2.Qxe2#
      • 1...f3
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATEB::QAR2(I)
  • Tries
    • Try
      • K(J);P-FLIGHT,XP(f)
      • Vars
        • P(d);OGATEB::QAR2(I)
      • Refutation
        • P(a);
    • Try
      • K(J);P-FLIGHT
      • Vars
        • P(a);OGATEB::QAR2(I),XP(a)
        • P(d);OGATEB::QAR2(I)
      • Refutation
        • P(f);XS(G)
    • Try
      • S(G);XP(a)
      • Vars
        • K(c);N_SPINB(b),OGATEB,P-FLIGHT,XS(G)::QAR1(I)
        • P(d);OGATEB,SBLOCK,XS(G)::QAR2(I)
      • Refutation
        • P(d);
    • Try
      • S(G);
      • Vars
        • P(d);OGATEB::QAR2(I)
      • Refutation
        • P(a);
    • Try
      • S(G);XP(d)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XS(G)::QAR1(I)
        • P(e);N_GUARD,SBLOCK,XS(G)::R1(D),XB(b)
      • Refutation
        • P(a);
    • Try
      • S(G);
      • Vars
        • P(d);OGATEB::QAR2(I)
      • Refutation
        • P(a);
    • Try
      • S(G);
      • Vars
        • P(d);OGATEB::QAR2(I)
      • Refutation
        • P(a);
    • Try
      • P(B);XB(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);P_SPINP(e),XP(B)::S(G)
        • P(a);::R(D)+P(B),XP(e)
      • Refutation
        • P(f);XS(G)
  • Actual
    • S(G);
    • Vars
      • P(a);OGATEB::QAR2(I),XP(a)
      • P(d);OGATEB::QAR2(I)
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