MESON Chess Problem Database

Problem Display
PID: 69713 (8/p2Q2p1/Np1p1pN1/3p3P/2pkp2P/7P/1P2K3/8 w - - 0 1)

Amirov, Talip Khasanovich

To Mat, 1962

8/p2Q2p1/Np1p1pN1/3p3P/2pkp2P/7P/1P2K3/8

#2

8 + 9

5454 Near Snap 2018
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Qa4#
    • 1...e3
      • 2.Qg4#
    • 1...b5
      • 2.Qxa7#
    • 1...f5
      • 2.Qxg7#
  • Tries
    • 1.Qc7?
      • 1...b5
        • 2.Qxa7#
      • 1...c3
        • 2.Qxc3#
        • 2.bxc3#
      • 1...f5
        • 2.Qxg7#
      • 1...e3!
    • 1.Qe7?
      • 1...b5
        • 2.Qxa7#
      • 1...e3
        • 2.Qxe3#
      • 1...f5
        • 2.Qxg7#
      • 1...c3!
    • 1.h6?
      • 1...c3
        • 2.Qa4#
      • 1...e3
        • 2.Qg4#
      • 1...b5
        • 2.Qxa7#
      • 1...f5
        • 2.Qxg7#
      • 1...gxh6!
  • Keys
    • 1.Qxd6!
      • 1...c3
        • 2.Qb4#
      • 1...e3
        • 2.Qf4#
      • 1...b5
        • 2.Qc5#
      • 1...f5
        • 2.Qe5#

This anticipates 164997(1980), 202758(2016)

This is a version

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 4
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::QAR(H)
    • P(c);OGATEB::QAR(H)
    • P(e);OGATEB::QAB(H),XP(h)
    • P(g);OGATEB::QAB(H),XP(i)
  • Tries
    • Try
      • Q(H);
      • Vars
        • P(e);OGATEB::QAB(H),XP(h)
        • P(g);OGATEB::QAB(H),XP(i)
      • Refutation
        • P(c);
    • Try
      • Q(H);
      • Vars
        • P(e);OGATEB::QAB(H),XP(h)
        • P(c);OGATE::QAB1(H),XP(c)
        • P(g);OGATEB::QAB(H),XP(i)
      • Refutation
        • P(a);
    • Try
      • P(E);
      • Vars
        • P(a);OGATEB::QAR(H)
        • P(c);OGATEB::QAR(H)
        • P(e);OGATEB::QAB(H),XP(h)
        • P(g);OGATEB::QAB(H),XP(i)
      • Refutation
        • P(i);XP(E)
  • Actual
    • Q(H);P_PINP(d),XP(f)
    • Vars
      • P(a);OGATEB::QAR2(H)
      • P(c);OGATEB::QAR2(H)
      • P(e);N_GUARD::QAB1(H)
      • P(g);N_GUARD::QAB1(H)
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