MESON Chess Problem Database

Problem Display
PID: 61197 (1Q6/3Pp2K/8/R1N2k2/3p3B/4p3/5N1n/1b3R2 w - - 0 1)

Farion, Petro Petrovich

Uralski Problemist, 2004

1Q6/3Pp2K/8/R1N2k2/3p3B/4p3/5N1n/1b3R2

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qf8#
  • Tries
    • 1.Sfd3+?
      • 1...Sxf1
        • 2.Qf4#
      • 1...Sf3
        • 2.Qf4#
      • 1...Kg4!
    • 1.Sh3+?
      • 1...Sxf1
        • 2.Qf4#
      • 1...Sf3
        • 2.Qf4#
      • 1...Kg4+!
    • 1.Sg4+?
      • 1...Sxf1
        • 2.Sh6#
      • 1...Sf3
        • 2.Sh6#
      • 1...Kxg4+!
    • 1.Sb3+?
      • 1...e5
        • 2.Qxe5#
      • 1...Ke6+!
    • 1.Scd3+?
      • 1...e5
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Ke6!
    • 1.Sa4+?
      • 1...e5
        • 2.Qxe5#
      • 1...Ke6+!
    • 1.Sce4+?
      • 1...e5
        • 2.Qxe5#
      • 1...Ke6!
    • 1.Sa6+?
      • 1...e5
        • 2.Qxe5#
      • 1...Ke6+!
    • 1.Sb7+?
      • 1...e5
        • 2.Qxe5#
      • 1...Ke6+!
    • 1.Qg3?
      • threat
        • 2.Qg5#
      • 1...Sg4
        • 2.Sxg4#
      • 1...Sf3!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Qf4#
        • 2.Qe5#
      • 1...Kg5+
        • 2.Sce4#
      • 1...Kf6+
        • 2.Sfe4#
      • 1...exf2
        • 2.Qf4#
      • 1...Sf3
        • 2.Qf4#
      • 1...Sg4
        • 2.Qf4#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(f);SBLOCK::QAR(H)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • S(b);XR(A)::QAR1(H)
        • S(b);P_SPINS(b)::QAR1(H)
      • Refutation
        • K(e);P_PINS(B),S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • S(b);XR(A)::QAR1(H)
        • S(b);P_SPINS(b)::QAR1(H)
      • Refutation
        • K(e);CHECK,S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • S(b);XR(A)::S(B)
        • S(b);P_SPINS(b)::S(B)
      • Refutation
        • K(e);CHECK,S_FLIGHT,XS(B)
    • Try
      • S(E);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAR1(H),XP(f)
      • Refutation
        • K(e);CHECK,S_FLIGHT
    • Try
      • S(E);CHECK
      • Refutation
        • K(e);P_PINS(E),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAR1(H),XP(f)
      • Refutation
        • K(e);CHECK,S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAR1(H),XP(f)
      • Refutation
        • K(e);P_PINS(E),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAR1(H),XP(f)
      • Refutation
        • K(e);CHECK,S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAR1(H),XP(f)
      • Refutation
        • K(e);CHECK,S_FLIGHT
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • S(b);N_GUARD::R(A)+S(B),XS(b)
      • Refutation
        • S(b);
  • Actual
    • B(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(e);CHECK,P-FLIGHT::R(D)+S(E),DCHECK
      • K(e);CHECK,P-FLIGHT::R(A)+S(B),DCHECK
      • P(c);P_SPINP(c),XS(B)::QAR1(H)
      • S(b);::QAR1(H)
      • P(f);::QAR1(H),XP(f)
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