MESON Chess Problem Database

Problem Display
PID: 110435 (2b1RnB1/8/3pqB2/8/2RpkNP1/1KpN4/3b4/3Q1n2 w - - 0 1)

Apro, Laszlo

Dunaujvarosi TST, 1963

2b1RnB1/8/3pqB2/8/2RpkNP1/1KpN4/3b4/3Q1n2

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qe2#
  • Tries
    • 1.Qe2+?
      • 1...Be3
        • 2.Qg2#
      • 1...Se3!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Rxd4#
      • 1...Kxd3
        • 2.Rxd4#
      • 1...Kxd5
        • 2.Qf3#
      • 1...Qe5
        • 2.Sf2#
      • 1...Be3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(e);N_SPINP(d),P-FLIGHT::QAR1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • B(b);P_SPINB(b),SBLOCK::QAB(A)
      • Refutation
        • S(a);P_SPINS(a)
  • Actual
    • S(E);N_SPINR(D)
    • Threat
      • R1(D),XP(d)
    • Vars
      • K(e);N_SPINP(d),N_SPINQ(g),P_SPINB(b),S_FLIGHT,XS(C)::R1(D),XP(d)
      • K(e);N_SPINP(d),S_FLIGHT,XS(E)::QAB(A)
      • Q(g);::S(C)
      • B(b);N_GUARD,SBLOCK::S(E),XP(c)
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