MESON Chess Problem Database

Problem Display
PID: 208449 (3K4/5p1p/1QB2P2/3N1P1q/2rPk3/3pN3/1b1n2Pp/4RrB1 w - - 0 1)

Pavlov, Mikhail Aleksandrovich

Sachova skladba, 1994

3K4/5p1p/1QB2P2/3N1P1q/2rPk3/3pN3/1b1n2Pp/4RrB1

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf5
      • 2.Sxf1#
    • 1...Rf4
      • 2.Sc3#
    • 1...Rxf5
      • 2.Sg4#
  • Tries
    • 1.Sxf1+?
      • 1...Qe2
        • 2.Sg3#
      • 1...Kxf5!
    • 1.Sxc4+?
      • 1...Qe2
        • 2.Sd6#
      • 1...Rxe1
        • 2.Sd6#
      • 1...Kxf5!
    • 1.Qb8?
      • threat
        • 2.Qe5#
      • 1...Kxd4
        • 2.Sc2#
      • 1...Qxf5
        • 2.Sxf1#
      • 1...Rxf5
        • 2.Sg4#
      • 1...Bxd4
        • 2.Sc3#
      • 1...Sf3
        • 2.Qf4#
      • 1...Rxd4!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qe5#
      • 1...Kxd4
        • 2.Sc2#
      • 1...Qxf5
        • 2.Sxf1#
      • 1...Rxf5
        • 2.Sg4#
      • 1...Rxd4
        • 2.Qe7#
      • 1...Bxd4
        • 2.Sc3#
      • 1...Sf3
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(h);N_GUARD,SBLOCK,XP(G)::R(A)+S(D),XR(a)
    • R(a);SBLOCK::B(I)+S(F),DCHECK
    • R(a);N_GUARD,SBLOCK,XP(G)::R(A)+S(D)
  • Tries
    • Try
      • S(D);CHECK,XR(a)
      • Vars
        • Q(h);P_SPINQ(h)::S(D)
      • Refutation
        • K(g);S_FLIGHT,XP(G)
    • Try
      • S(D);CHECK,XR(f)
      • Vars
        • Q(h);P_SPINQ(h)::S(D)
        • R(a);XR(A)::S(D)
      • Refutation
        • K(g);S_FLIGHT,XP(G)
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • K(g);P-FLIGHT,XP(E)::B(B)+S(D),DCHECK
        • Q(h);N_GUARD,SBLOCK,XP(G)::R(A)+S(D),XR(a)
        • R(a);N_GUARD,SBLOCK,XP(G)::R(A)+S(D)
        • B(b);SBLOCK,XP(E)::B(I)+S(F),DCHECK
        • S(c);S_CUTR(a)::QAR1(H)
      • Refutation
        • R(f);P_PINS(F),XP(E)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H)
    • Vars
      • K(g);P-FLIGHT,XP(E)::B(B)+S(D),DCHECK
      • Q(h);N_GUARD,SBLOCK,XP(G)::R(A)+S(D),XR(a)
      • R(a);N_GUARD,SBLOCK,XP(G)::R(A)+S(D)
      • R(f);P_PINS(F),SBLOCK,XP(E)::QAR(H)
      • B(b);SBLOCK,XP(E)::B(I)+S(F),DCHECK
      • S(c);S_CUTR(a)::QAR1(H)
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