MESON Chess Problem Database

Problem Display
PID: 11294 (2Q5/5p2/3p2N1/1p1kn1qR/1P1br1Nr/2P1p3/7P/K2R1B2 w - - 0 1)

Apro, Laszlo

1st Prize, Uj Magyarsag, 1937

2Q5/5p2/3p2N1/1p1kn1qR/1P1br1Nr/2P1p3/7P/K2R1B2

#2

10 + 10

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Qf4
      • 2.Se7#
    • 1...Qf6
      • 2.Sxf6#
    • 1...Qh6
      • 2.Sf6#
      • 2.Se7#
    • 1...Qe7
      • 2.Sxe7#
    • 1...Qxg4
      • 2.Se7#
    • 1...Qf5
      • 2.Se7#
    • 1...Qxh5
      • 2.Sf6#
      • 2.Se7#
    • 1...Sf3
      • 2.Sf6#
    • 1...Sc4
      • 2.Sf6#
    • 1...Sc6
      • 2.Sf6#
    • 1...f6
      • 2.Se7#
  • Tries
    • 1.Sxe3+?
      • 1...Qxe3
        • 2.Se7#
      • 1...Rxe3!
    • 1.Bc4+?
      • 1...Sxc4
        • 2.Sf6#
      • 1...bxc4!
    • 1.Qa8+?
      • 1...Sc6
        • 2.Qa2#
      • 1...Ke6!
  • Keys
    • 1.Bg2!
      • threat
        • 2.Rxd4#
      • 1...Sc6
        • 2.Sxe3#
      • 1...Sd7
        • 2.Sf4#
      • 1...Sd3
        • 2.Se7#
      • 1...Sf3
        • 2.Sf6#

This is a version of 11293

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(h);N_GUARD,P_SPINS(g)::S(I)
    • Q(h);N_GUARD,P_SPINS(g)::S(G),XQ(h)
    • Q(h);N_GUARD,P_SPINS(g)::S(I),XQ(h)
    • Q(h);N_GUARD,P_SPINS(g),XS(G)::S(I)
    • Q(h);N_GUARD::S(I)
    • S(g);P_SPINQ(h)::S(G)
    • P(j);S_CUTQ(h)::S(I)
  • Tries
    • Try
      • S(G);CHECK,XP(a)
      • Vars
        • Q(h);P_SPINS(g),XS(G)::S(I)
      • Refutation
        • R(c);XS(G)
    • Try
      • B(C);CHECK
      • Vars
        • S(g);P_SPINQ(h),XB(C)::S(G)
      • Refutation
        • P(e);XB(C)
    • Try
      • Q(J);CHECK
      • Vars
        • S(g);N_GUARD,P_SPINQ(h),P_SPINS(g),SBLOCK::QAB(J)
      • Refutation
        • K(f);N_SPINB(b),S_FLIGHT
  • Actual
    • B(C);P_PINR(c)
    • Threat
      • R1(B),XB(b)
    • Vars
      • S(g);P_SPINQ(h)::S(G),XP(a)
      • S(g);P_SPINQ(h)::S(I)
      • S(g);N_SPINB(b),P_SPINQ(h)::S(I)
      • S(g);N_SPINR(c),P_SPINQ(h)::S(G)
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