MESON Chess Problem Database

Problem Display
PID: 98985 (1K6/8/1N1ppp1N/p1PBk3/6pp/1p2Ppn1/QPP2P1B/8 w - - 0 1)

Apro, Laszlo

Magyar Sakkelet, 1988

1K6/8/1N1ppp1N/p1PBk3/6pp/1p2Ppn1/QPP2P1B/8

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...bxc2
      • 2.Sd7#
    • 1...h3
      • 2.Bxg3#
  • Tries
    • 1.Bxf3?
      • threat
        • 2.Sc4#
        • 2.Sd7#
      • 1...dxc5
        • 2.Sc4#
      • 1...f5
        • 2.Sd7#
      • 1...d5
        • 2.Sd7#
      • 1...gxf3!
    • 1.Bc6?
      • threat
        • 2.Sc4#
        • 2.Sd7#
      • 1...dxc5
        • 2.Sc4#
      • 1...f5
        • 2.Sd7#
      • 1...d5!
    • 1.Bb7?
      • threat
        • 2.Sc4#
        • 2.Sd7#
      • 1...dxc5
        • 2.Sc4#
      • 1...f5
        • 2.Sd7#
      • 1...d5!
    • 1.Ba8?
      • threat
        • 2.Sc4#
        • 2.Sd7#
      • 1...dxc5
        • 2.Sc4#
      • 1...f5
        • 2.Sd7#
      • 1...d5!
    • 1.Qxb3?
      • threat
        • 2.Sd7#
        • 2.Qc3#
      • 1...exd5
        • 2.Qxd5#
      • 1...dxc5!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qd4#
        • 2.Qe4#
        • 2.Qf4#
      • 1...dxc5
        • 2.Qf4#
      • 1...exd5
        • 2.Qe8#
      • 1...f5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • P(a);XP(C)::S(I)
    • P(e);N_GUARD::B(E),XS(c)
  • Tries
    • Try
      • B(H);XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(h);XP(G)::S(I)
        • P(j);::S(I)
        • P(h);::S(I)
      • Refutation
        • P(d);XB(H)
    • Try
      • B(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);XP(G)::S(I)
        • P(j);::S(I)
      • Refutation
        • P(h);
    • Try
      • B(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);XP(G)::S(I)
        • P(j);::S(I)
      • Refutation
        • P(h);
    • Try
      • B(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);XP(G)::S(I)
        • P(j);::S(I)
      • Refutation
        • P(h);
    • Try
      • Q(A);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(i);OGATE,XB(H)::QAR1(A),XP(i)
      • Refutation
        • P(h);XP(G)
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • P(h);XP(G)::QAB1(A)
      • P(i);OGATEB,XB(H)::QAR(A)
      • P(j);::QAB1(A)
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