MESON Chess Problem Database

Problem Display
PID: 276123 (1r3n2/4P3/1BN5/1p4NB/q4kPP/1r5p/Qb3p1K/2RR4 w - - 0 1)

Amirov, Talip Khasanovich

Mat, 1981

1r3n2/4P3/1BN5/1p4NB/q4kPP/1r5p/Qb3p1K/2RR4

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qf7#
    • 1...Bc3
      • 2.Qxf2#
  • Tries
    • 1.exf8Q+?
      • 1...Bf6
        • 2.Qxf6#
      • 1...Rxf8!
    • 1.exf8R+?
      • 1...Bf6
        • 2.Rxf6#
      • 1...Rxf8!
  • Keys
    • 1.Rc3!
      • threat
        • 2.Be3#
        • 2.Bc7#
      • 1...f1S+
        • 2.Rxf1#
      • 1...Rxc3
        • 2.Qf7#
      • 1...Rxb6
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Bxc3
        • 2.Qxf2#
      • 1...Qa3
        • 2.Be3#
        • 2.Rd4#
      • 1...Qb4
        • 2.Be3#
      • 1...Qd4
        • 2.Rxd4#
      • 1...Qe4
        • 2.Sxh3#
      • 1...Qa5
        • 2.Be3#
        • 2.Rd4#
      • 1...Qa7
        • 2.Rd4#
      • 1...Rb7
        • 2.Be3#
      • 1...Rc8
        • 2.Be3#
      • 1...Rd8
        • 2.Be3#
      • 1...Bc1
        • 2.Bc7#
        • 2.Qxf2#
      • 1...Ba3
        • 2.Be3#
        • 2.Qd2#
        • 2.Qxf2#
      • 1...Se6
        • 2.Be3#
      • 1...Sg6
        • 2.Be3#
      • 1...Sd7
        • 2.Be3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE::QAR(C)
    • B(a);OGATE::QAR2(C),XP(b)
  • Tries
    • Try
      • P(K);CHECK,XS(i)
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR2(K),XB(a)
      • Refutation
        • R(h);XQ(K)
    • Try
      • P(K);CHECK,XS(i)
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::R(K),XB(a)
      • Refutation
        • R(h);XR(K)
  • Actual
    • R(A);
    • Threat
      • DUALS(2)
    • Vars
      • P(b);CHECK,OGATEB::R(B),XS(b)
      • R(c);OGATE,XR(A)::QAR(C)
      • R(h);N_GUARD,XB(I)::PXS(i)=Q
      • B(a);OGATE,XR(A)::QAR2(C),XP(b)
      • Q(e);::B(I)
      • Q(e);N_GUARD::R(B),XQ(e)
      • Q(e);SBLOCK::S(G),XP(d)
      • Q(e);N_GUARD::R(B)
      • R(h);::B(I)
      • S(i);::B(I)
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