MESON Chess Problem Database

Problem Display
PID: 23429 (8/5Q2/8/8/2K1k3/2nNp3/4n3/8 w - - 0 1)

Tauber, R

Schweizerische Schachzeitung, 1924

8/5Q2/8/8/2K1k3/2nNp3/4n3/8

#2

3 + 4

2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qf4#
    • 1...Sg1
      • 2.Qf4#
    • 1...Sg3
      • 2.Qf4#
    • 1...Sd4
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sb1
      • 2.Qd5#
    • 1...Sd1
      • 2.Qd5#
    • 1...Sa2
      • 2.Qd5#
    • 1...Sa4
      • 2.Qd5#
    • 1...Sb5
      • 2.Qd5#
    • 1...Sd5
      • 2.Qxd5#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Sc5#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sa4!
    • 1.Qb7+?
      • 1...Sd5
        • 2.Qxd5#
      • 1...Kf5!
  • Keys
    • 1.Qh5!
      • 1...Sc1
        • 2.Qg4#
      • 1...Sg1
        • 2.Qg4#
      • 1...Sg3
        • 2.Qg4#
      • 1...Sd4
        • 2.Qg4#
      • 1...Sf4
        • 2.Sc5#
      • 1...Sb1
        • 2.Qd5#
      • 1...Sd1
        • 2.Qd5#
      • 1...Sa2
        • 2.Qd5#
      • 1...Sa4
        • 2.Qd5#
      • 1...Sb5
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#

This anticipates 16843(1943), 18147(1953), 88777(1993), 16255(2000)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 5
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR1(C)
    • S(a);N_GUARD::QAR1(C),XS(a)
    • S(b);N_GUARD::QAB1(C)
    • S(b);N_GUARD::QAB1(C),XS(b)
  • Tries
    • Try
      • Q(C);
      • Threat
        • S(A)
      • Vars
        • S(a);N_GUARD::QAR1(C),XS(a)
      • Refutation
        • S(b);
    • Try
      • Q(C);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(C),XS(b)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • S(a);N_GUARD::QAR2(C)
      • S(a);SBLOCK::S(A)
      • S(b);N_GUARD::QAB1(C)
      • S(b);N_GUARD::QAB1(C),XS(b)
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