MESON Chess Problem Database

Problem Display
PID: 99639 (3n4/3N4/3k1K2/4N3/n1Q5/8/8/8 w - - 0 1)

Talaber, Laszlo

Magyar Sakkvilag, 1931

3n4/3N4/3k1K2/4N3/n1Q5/8/8/8

#2

4 + 3

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Qc5#
    • 1...Sc3
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sb6
      • 2.Qc5#
    • 1...Sc6
      • 2.Qxc6#
    • 1...Se6
      • 2.Qc6#
    • 1...Sb7
      • 2.Qc6#
    • 1...Sf7
      • 2.Qc6#
  • Tries
    • 1.Qc2?
      • 1...Kd5
        • 2.Qd3#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...Se6
        • 2.Qc6#
      • 1...Sb7
        • 2.Qc6#
      • 1...Sf7
        • 2.Qc6#
      • 1...Sc3!
    • 1.Qc3?
      • 1...Kd5
        • 2.Qd3#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...Se6
        • 2.Qc6#
      • 1...Sb7
        • 2.Qc6#
      • 1...Sf7
        • 2.Qc6#
      • 1...Sxc3!
    • 1.Qb4+?
      • 1...Kc7
        • 2.Qb8#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Kd5!
    • 1.Qc8?
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Se6
        • 2.Qc6#
      • 1...Sb7
        • 2.Qc6#
      • 1...Sf7
        • 2.Qc6#
      • 1...Kd5!
  • Keys
    • 1.Qb5!
      • 1...Kc7
        • 2.Qb8#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Se6
        • 2.Qc6#
      • 1...Sb7
        • 2.Qc6#
      • 1...Sf7
        • 2.Qc6#

This anticipates 23061(1996)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XS(a)
    • S(c);N_GUARD::QAR1(A),XS(c)
    • S(c);N_GUARD::QAR1(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(c);N_GUARD::QAR1(A),XS(c)
        • S(a);N_GUARD::QAB1(A)
        • S(c);N_GUARD::QAR1(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(c);N_GUARD::QAR1(A),XS(c)
        • S(a);N_GUARD::QAB1(A)
        • S(c);N_GUARD::QAR1(A)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • S(a);N_GUARD::QAB1(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(c);N_GUARD::QAR1(A),XS(c)
        • S(c);N_GUARD::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • S(a);N_GUARD::QAB1(A)
      • S(c);N_GUARD::QAR1(A),XS(c)
      • S(c);N_GUARD::QAR1(A)
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