MESON Chess Problem Database

Problem Display
PID: 156675 (3r4/4p3/1P1k4/1Pp3R1/3r1p2/3P1B1Q/8/2B2K2 w - - 0 1)

Amirov, Talip Khasanovich

Revista Romana de Sah, 1977

3r4/4p3/1P1k4/1Pp3R1/3r1p2/3P1B1Q/8/2B2K2

#2

8 + 6

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Rd5#
    • 1...Rb4
      • 2.Rd5#
    • 1...Rc4
      • 2.Rd5#
    • 1...Rd5
      • 2.Rxd5#
    • 1...c4
      • 2.Ba3#
  • Tries
    • 1.Bxf4+?
      • 1...Rxf4
        • 2.Rd5#
      • 1...e5!
    • 1.Re5?
      • threat
        • 2.Qe6#
      • 1...e6
        • 2.Qxe6#
      • 1...Kxe5!
    • 1.Qh6+?
      • 1...Kd7
        • 2.Qc6#
      • 1...e6!
  • Keys
    • 1.Rg6+!
      • 1...Ke5
        • 2.Re6#
        • 2.Qe6#
        • 2.Qh5#
      • 1...e6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(a);N_GUARD::R1(G)
    • R(a);N_GUARD::R1(G),XR(a)
    • P(c);OGATEB::B(A)
  • Tries
    • Try
      • B(A);CHECK,XP(b)
      • Vars
        • R(a);P_PINB(D),XB(A)::R1(G)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • R(G);
      • Threat
        • QAR1(E)
      • Vars
        • P(e);::QAR1(E),XP(e)
      • Refutation
        • K(d);S_FLIGHT,XR(G)
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);OGATE,P-FLIGHT::QAB1(E)
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • R(G);CHECK
    • Vars
      • P(e);P_SPINP(e)::QAR1(E),XP(e)
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