MESON Chess Problem Database

Problem Display
PID: 106228 (4BK2/3p4/RP3Q2/1Nk5/4P3/1p1p4/1ppr4/nrb1B3 w - - 0 1)

Kasar, Miroslav

Labai, Zoltan

1st HM., Praca, 1998

(First published on Sat Oct 3 1998)

4BK2/3p4/RP3Q2/1Nk5/4P3/1p1p4/1ppr4/nrb1B3

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qc3#
      • 2.Qd4#
    • 1...d6
      • 2.Qc3#
      • 2.Qd4#
  • Tries
    • 1.Sa3?
      • 1...Kb4
        • 2.Qd4#
      • 1...Rd1
        • 2.Ra5#
      • 1...Re2
        • 2.Ra5#
      • 1...Rf2
        • 2.Ra5#
      • 1...Rg2
        • 2.Ra5#
      • 1...Rh2
        • 2.Ra5#
      • 1...d6
        • 2.Qc3#
      • 1...d5!
    • 1.Bxd7?
      • threat
        • 2.Qc3#
        • 2.Qd4#
      • 1...Kb4
        • 2.Qc3#
        • 2.Qd4#
      • 1...Kc4
        • 2.Qc3#
        • 2.Qd4#
      • 1...Rf2!
    • 1.Qd4+?
      • 1...Kc6
        • 2.Qd5#
      • 1...Kxb5!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Ra4#
      • 1...Kc6
        • 2.Qd5#
      • 1...d5
        • 2.Qc3#
        • 2.Qd4#
      • 1...Kb4!
  • Keys
    • 1.Ra5!
      • 1...Kb4
        • 2.Qc3#
      • 1...Kc4
        • 2.Qc3#
        • 2.Qd4#
      • 1...d6
        • 2.Qd4#
      • 1...Rd1
        • 2.Sa3#
      • 1...Re2
        • 2.Sa3#
      • 1...Rf2
        • 2.Sa3#
      • 1...Rg2
        • 2.Sa3#
      • 1...Rh2
        • 2.Sa3#
      • 1...d5
        • 2.Qd4#

There are these versions: 225545

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(i);P_SPINR(f),S_FLIGHT::QAR2(F)
        • R(f);::R(D)
        • R(f);P_PINQ(F)::R(D)
        • P(j);SBLOCK::QAR2(F)
      • Refutation
        • P(j);
    • Try
      • B(G);XP(j)
      • Threat
        • DUALS(2)
      • Refutation
        • R(f);P_PINQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(i);P-FLIGHT,P_SPINP(j)::QAB1(F)
      • Refutation
        • K(i);P-FLIGHT,P_SPINP(j),XS(C)
    • Try
      • Q(F);CHECK
      • Vars
        • K(i);P-FLIGHT::R(D)
        • K(i);P-FLIGHT,P_SPINP(j)::QAB1(F)
      • Refutation
        • K(i);P_SPINR(f),S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(i);P_SPINR(f),S_FLIGHT::QAB1(F)
      • P(j);::QAB1(F)
      • R(f);::R(D)+S(C)
      • R(f);P_PINQ(F)::R(D)+S(C)
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