MESON Chess Problem Database

Problem Display
PID: 158118 (b1Bn3B/2nq4/8/2Q1P3/4pk1P/3pRpN1/5N1P/6K1 w - - 0 1)

Apro, Laszlo

Australasian Chess Review, 1933

b1Bn3B/2nq4/8/2Q1P3/4pk1P/3pRpN1/5N1P/6K1

#2

10 + 8

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Sxh3#
      • 2.Sh5#
    • 1...Qa4
      • 2.Sh3#
      • 2.Sh5#
    • 1...Qb5
      • 2.Sh3#
      • 2.Sh5#
    • 1...Qc6
      • 2.Sh3#
      • 2.Sh5#
    • 1...Qe8
      • 2.Sh3#
    • 1...Qd5
      • 2.Sh3#
      • 2.Sh5#
    • 1...Qd6
      • 2.Sh3#
      • 2.Sh5#
    • 1...Qe7
      • 2.Sh3#
      • 2.Sh5#
    • 1...Qf7
      • 2.Sh3#
    • 1...Qg7
      • 2.Sh3#
    • 1...Qh7
      • 2.Sh3#
    • 1...Sd5
      • 2.Rxe4#
    • 1...Sc6
      • 2.Rxe4#
    • 1...Sb7
      • 2.Rxe4#
  • Tries
    • 1.Sh3+?
      • 1...Qxh3
        • 2.Sh5#
      • 1...Kg4!
  • Keys
    • 1.Re1!
      • threat
        • 2.Qe3#
      • 1...Qd4
        • 2.Sh5#
      • 1...Qg7
        • 2.Sh3#
      • 1...Sd5
        • 2.Rxe4#
      • 1...e3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(f);N_GUARD::S(B)
    • Q(f);N_GUARD,P_PINS(E)::S(B)
    • S(e);S_CUTB(g)::R1(D),XP(c)
    • S(h);S_CUTB(g)::R1(D),XP(c)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • Q(f);XS(B)::S(E)
      • Refutation
        • K(d);P-FLIGHT,P_SPINQ(f)
  • Actual
    • R(D);
    • Threat
      • QAB1(G)
    • Vars
      • Q(f);P_PINS(B)::S(E)
      • Q(f);N_GUARD,P_PINS(E)::S(B)
      • S(e);S_CUTB(g)::R1(D),XP(c)
      • P(c);::QAB1(G),XP(c)
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