MESON Chess Problem Database

Problem Display
PID: 50328 (6K1/8/1p4R1/3k1p2/6p1/1P1N1P2/bn1Q1pr1/8 w - - 0 1)

Zujevas, Nikolajus

Scacco!, 2003

6K1/8/1p4R1/3k1p2/6p1/1P1N1P2/bn1Q1pr1/8

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rd6#
  • Tries
    • 1.Sxb2+?
      • 1...Ke5
        • 2.Sc4#
        • 2.Qd6#
      • 1...Kc5!
    • 1.Sb4+?
      • 1...Ke5
        • 2.Sc6#
        • 2.Qe3#
        • 2.Qd6#
      • 1...Kc5!
    • 1.Sf4+?
      • 1...Ke5
        • 2.Re6#
        • 2.Qe3#
        • 2.Qd6#
      • 1...Kc5!
    • 1.Qc3?
      • threat
        • 2.Sb4#
        • 2.Sf4#
        • 2.Qe5#
      • 1...Bxb3
        • 2.Sb4#
        • 2.Sf4#
      • 1...gxf3
        • 2.Qe5#
      • 1...Sc4
        • 2.Qxc4#
      • 1...f4
        • 2.Sb4#
        • 2.Sxf4#
        • 2.Qe5#
      • 1...Sxd3!
    • 1.Qb4?
      • threat
        • 2.Rd6#
        • 2.Qd6#
      • 1...Bxb3
        • 2.Rd6#
      • 1...Sxd3
        • 2.Qd6#
      • 1...Sc4
        • 2.Qxc4#
      • 1...gxf3!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Rd6#
        • 2.Qe5#
        • 2.Qd6#
      • 1...Bxb3
        • 2.Rd6#
      • 1...Sxd3
        • 2.Qd6#
      • 1...gxf3
        • 2.Qe5#
      • 1...Sc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(f);P-FLIGHT,P_PINP(B)::R(E)
  • Tries
    • Try
      • S(C);CHECK,XS(b)
      • Refutation
        • K(f);P-FLIGHT,P_PINP(B)
    • Try
      • S(C);CHECK
      • Refutation
        • K(f);P-FLIGHT,P_PINP(B)
    • Try
      • S(C);CHECK
      • Refutation
        • K(f);P-FLIGHT,P_PINP(B)
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • P(e);P_PINR(E),XP(D)::QAR1(A)
        • S(b);N_GUARD::QAB1(A),XS(b)
      • Refutation
        • S(b);XS(C)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XP(B)::R1(E)
        • S(b);XS(C)::QAR1(A)
        • S(b);N_GUARD::QAB1(A),XS(b)
      • Refutation
        • P(e);P_PINR(E),XP(D)
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • B(a);XP(B)::R1(E)
      • S(b);XS(C)::QAR1(A)
      • P(e);P_PINR(E),XP(D)::QAR1(A)
      • S(b);N_GUARD::QAB1(A),XS(b)
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