MESON Chess Problem Database

Problem Display
PID: 137545 (n1B4K/R6Q/r4p2/2bpkp2/1N1r3p/2P1B3/4R3/1q6 w - - 0 1)

Mihajloski, Zlatko

Liga Problemista, 1988/2

n1B4K/R6Q/r4p2/2bpkp2/1N1r3p/2P1B3/4R3/1q6

#2

8 + 10

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qxf5#
    • 1...Kd6
      • 2.Qe7#
    • 1...Bb6
      • 2.Qe7#
  • Tries
    • 1.Sc6+?
      • 1...Ke4
        • 2.Qxf5#
      • 1...Kd6
        • 2.Qd7#
      • 1...Rxc6!
    • 1.Bxd4+?
      • 1...Kd6
        • 2.Re6#
        • 2.Rd7#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Kf4!
    • 1.Re7+?
      • 1...Kd6
        • 2.Re6#
      • 1...Re6
        • 2.Rxe6#
      • 1...Bxe7!
    • 1.Qxf5+?
      • 1...Kd6
        • 2.Rd7#
        • 2.Qe6#
        • 2.Qxf6#
      • 1...Qxf5!
    • 1.Qe7+?
      • 1...Re6
        • 2.Qxe6#
      • 1...Bxe7!
    • 1.cxd4+?
      • 1...Ke4
        • 2.Qxf5#
      • 1...Kd6
        • 2.Bf4#
        • 2.Qd7#
        • 2.Qe7#
      • 1...Bxd4!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Bf4#
      • 1...Ke4
        • 2.Qf4#
      • 1...Kd6
        • 2.Qxf6#
      • 1...Rf4
        • 2.Bxf4#
        • 2.Qxf4#
      • 1...f4
        • 2.Bxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(f);P-FLIGHT,P_SPINP(g)::QAB1(F),XP(g)
    • K(f);S_FLIGHT::QAB1(F)
    • B(d);N_GUARD,S_CUTR(h)::QAR2(F)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINP(g)::QAB1(F),XP(g)
        • K(f);S_FLIGHT::QAR1(F)
      • Refutation
        • R(h);XS(D)
    • Try
      • B(C);CHECK,XR(b)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(f);S_FLIGHT::R1(E)
        • R(h);N_GUARD,P_SPINR(h)::R1(E),XR(h)
      • Refutation
        • B(d);XR(E)
    • Try
      • Q(F);CHECK,XP(g)
      • Refutation
        • Q(a);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • R(h);N_GUARD,P_SPINR(h)::QAR1(F),XR(h)
      • Refutation
        • B(d);XQ(F)
    • Try
      • P(B);CHECK,XR(b)
      • Vars
        • K(f);P-FLIGHT,P_SPINP(g)::QAB1(F),XP(g)
      • Refutation
        • B(d);XP(B)
  • Actual
    • Q(F);
    • Threat
      • R(A)+B(C),DCHECK
    • Vars
      • K(f);P-FLIGHT::QAR1(F)
      • K(f);P_SPINP(i),S_FLIGHT::QAR2(F),XP(i)
      • P(g);::R(A)+B(C),DCHECK,XP(g)
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