MESON Chess Problem Database

Problem Display
PID: 42673 (6KB/3Q3p/B7/3P4/p1bnkNp1/r2R1n2/1R2NP1p/8 w - - 0 1)

Shanshin, Valery Yurevich

2nd Prize, Slovensky Dennik, 1993-1994

6KB/3Q3p/B7/3P4/p1bnkNp1/r2R1n2/1R2NP1p/8

#2

10 + 9

3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Re3#
    • 1...Ra2
      • 2.Re3#
    • 1...Bb3
      • 2.Re3#
    • 1...Bxd5+
      • 2.Qxd5#
    • 1...Sc2
      • 2.Qxh7#
    • 1...Sb3
      • 2.Re3#
      • 2.Qxh7#
    • 1...Sb5
      • 2.Qxh7#
    • 1...Sc6
      • 2.Qxh7#
    • 1...Se6
      • 2.Qxh7#
  • Tries
    • 1.Qxg4?
      • threat
        • 2.Sg3#
      • 1...Bxd5+
        • 2.Se6#
      • 1...Sxe2
        • 2.Rxe2#
      • 1...Sf5
        • 2.Qxf3#
      • 1...h1S!
    • 1.Qe6+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Sxe6!
    • 1.Qe7+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Se6
        • 2.Qxh7#
      • 1...Kf5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc5#
      • 1...Kxd3
        • 2.Sc5#
      • 1...Kf5
        • 2.Qxh7#
      • 1...Bxd5
        • 2.Sg3#
      • 1...Sxe2
        • 2.Qxh7#
      • 1...Sxe6
        • 2.Qxh7#
      • 1...Sb3
        • 2.Qxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(b);N_GUARD::R1(D)
    • B(e);S_CUTR(b)::R1(D)
    • B(e);CHECK,OGATE,XP(F)::QAB1(H),XB(e)
    • S(f);N_GUARD::QAB(H),XP(i)
    • S(f);N_GUARD,N_PINP(F)::QAB(H),XP(i)
  • Tries
    • Try
      • Q(H);XP(h)
      • Threat
        • S(B)
      • Vars
        • B(e);CHECK,SBLOCK,XP(F)::QAR(H)+S(E)
        • S(f);OGATE,XS(B)::R(A),XS(f)
        • S(f);N_GUARD,SBLOCK::QAB1(H),XS(c)
      • Refutation
        • P(a);
    • Try
      • Q(H);CHECK,N_SPINP(F)
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAR1(H),XS(c)
      • Refutation
        • S(f);XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAR1(H),XS(c)
        • S(f);N_GUARD,N_PINP(F),P_SPINS(f)::QAB(H),XP(i)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • S(E);N_SPINP(F)
    • Threat
      • S(E)
    • Vars
      • K(g);P_SPINB(e),S_FLIGHT,XR(D)::S(E)
      • K(g);S_FLIGHT::QAB(H),XP(i)
      • B(e);P_PINS(E),XP(F)::S(B)
      • S(f);N_GUARD,XS(B)::QAB(H),XP(i)
      • S(f);N_GUARD,XS(E)::QAB(H),XP(i)
      • S(f);N_GUARD::QAB(H),XP(i)
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