MESON Chess Problem Database

Problem Display
PID: 58185 (8/8/3Q4/3p1B2/P2k4/8/R7/2N4K w - - 0 1)

Fomichev, Evgeny Vasilevich

Torre & Cavallo - Scacco!, 2001

8/8/3Q4/3p1B2/P2k4/8/R7/2N4K

#2

6 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qc5#
  • Tries
    • 1.Kg2?
      • 1...Kc3
        • 2.Qc5#
      • 1...Ke3
        • 2.Qe5#
      • 1...Kc4!
    • 1.Se2+?
      • 1...Ke3
        • 2.Qg3#
        • 2.Qf4#
      • 1...Kc4!
    • 1.Bd3?
      • 1...Kc3
        • 2.Qc5#
      • 1...Ke3!
    • 1.Rb2?
      • 1...Kc3
        • 2.Qb4#
      • 1...Kc4
        • 2.Qb4#
      • 1...Ke3!
    • 1.Re2?
      • threat
        • 2.Qb4#
      • 1...Kc3
        • 2.Qc5#
      • 1...Kc4!
    • 1.Rf2?
      • 1...Kc3
        • 2.Qc5#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc4!
    • 1.Qf4+?
      • 1...Kc3
        • 2.Rc2#
      • 1...Kc5!
    • 1.Qe7?
      • 1...Kc3
        • 2.Qc5#
      • 1...Kc4!
    • 1.Qxd5+?
      • 1...Kc3
        • 2.Qc5#
      • 1...Ke3
        • 2.Qe4#
      • 1...Kxd5!
    • 1.Qb6+?
      • 1...Kc3
        • 2.Rc2#
        • 2.Qc5#
      • 1...Kc4
        • 2.Rc2#
      • 1...Ke5!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qc5#
      • 1...Kc3
        • 2.Qb4#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc4
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(b),S_FLIGHT::QAR2(F)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • S(A);CHECK
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAB1(F)
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(F)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • R(C);
      • Threat
        • QAR2(F)
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR2(F)
        • K(a);N_SPINP(b),S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • Q(F);CHECK,N_PINP(b)
      • Vars
        • K(a);S_FLIGHT::R1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);N_PINP(b)
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(F);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK,N_PINP(b)
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAB1(F)
    • Vars
      • K(a);N_SPINP(b),S_FLIGHT::QAB1(F)
      • K(a);N_SPINP(b),P-FLIGHT::QAR1(F)
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