MESON Chess Problem Database

Problem Display
PID: 275924 (6B1/K7/3pR3/1p1rR3/2Nk4/1Q5n/7B/8 w - - 0 1)

Murashev, Pavel Aleksandrovich

Shakhmatnaya kompozitsiya, 2024

6B1/K7/3pR3/1p1rR3/2Nk4/1Q5n/7B/8

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sg1
      • 2.Bxg1#
    • 1...Sf4
      • 2.Bg1#
    • 1...Sg5
      • 2.Bg1#
    • 1...bxc4
      • 2.Qe3#
  • Tries
    • 1.Sxd6?
      • threat
        • 2.Rxd5#
        • 2.Qe3#
      • 1...Kc5
        • 2.Qc3#
      • 1...Rxd6
        • 2.Rxd6#
      • 1...Rc5
        • 2.Sf5#
        • 2.Re4#
        • 2.Qe3#
      • 1...Sf4
        • 2.Bg1#
        • 2.Qe3#
      • 1...Rxe5!
    • 1.Bg1+?
      • 1...Sf2
        • 2.Bxf2#
      • 1...Sxg1!
    • 1.Qc3+?
      • 1...Kc5
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Sb6#
        • 2.Sxd6#
      • 1...Kxc3!
  • Keys
    • 1.Rxd6!
      • threat
        • 2.Rdxd5#
      • 1...Kc5
        • 2.Rexd5#
      • 1...Rxd6
        • 2.Qe3#
      • 1...Sf4
        • 2.Bg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::B(A),XS(a)
    • S(a);N_GUARD::B(A)
    • P(c);SBLOCK,XS(C)::QAB1(B)
  • Tries
    • Try
      • S(C);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • K(b);N_GUARD,P_SPINR(d),S_FLIGHT::QAR2(B)
        • R(d);OGATE,XS(C)::R(E),XR(d)
      • Refutation
        • R(d);XR(D)
    • Try
      • B(A);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::B(A),XS(a)
      • Refutation
        • S(a);XB(A)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(B)
  • Actual
    • R(E);P_PINR(d),XP(e)
    • Threat
      • R1(E),XR(d)
    • Vars
      • K(b);N_GUARD,S_FLIGHT::R1(D),XR(d)
      • R(d);N_SPINR(d),XR(E)::QAB1(B)
      • S(a);N_GUARD::B(A)
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