MESON Chess Problem Database

Problem Display
PID: 35522 (8/3K2p1/2Bn4/4kPRN/2R1p3/2n5/b7/1Q3r2 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Veselenchuk, Semen Ivanovich

Springaren, 1994

8/3K2p1/2Bn4/4kPRN/2R1p3/2n5/b7/1Q3r2

#2

7 + 7

3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf5
      • 2.Qb8#
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qxc3#
      • 1...Rc1
        • 2.Qh2#
      • 1...Rd1
        • 2.Qh2#
      • 1...Sb5
        • 2.Rxe4#
      • 1...Rf3!
    • 1.Qb4?
      • threat
        • 2.Qxc3#
        • 2.Qxd6#
      • 1...Sxc4
        • 2.Qxc3#
      • 1...Sxf5
        • 2.Qxc3#
        • 2.Qd6#
        • 2.Qe7#
        • 2.Qb8#
      • 1...Rf3
        • 2.Qxd6#
      • 1...Rc1
        • 2.Qxd6#
      • 1...Sb1
        • 2.Qc5#
        • 2.Qxd6#
      • 1...Sd1
        • 2.Qc5#
        • 2.Qxd6#
      • 1...Se2
        • 2.Qc5#
        • 2.Qxd6#
      • 1...Sa4
        • 2.Qxd6#
      • 1...Scb5
        • 2.Qc5#
      • 1...Sd5
        • 2.Qxd6#
      • 1...Sdb5
        • 2.Qe7#
      • 1...Sb7
        • 2.Qxc3#
        • 2.Qe7#
      • 1...Sf7
        • 2.Qxc3#
        • 2.Qe7#
      • 1...Sc8
        • 2.Qxc3#
      • 1...Se8
        • 2.Qxc3#
        • 2.Qe7#
      • 1...Rd1!
    • 1.f6+?
      • 1...Sf5
        • 2.Qb8#
      • 1...Rf5!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qxd6#
      • 1...Rd1
        • 2.f6#
      • 1...Sb5
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(f);OGATEB,P_SPINS(f),XP(C)::QAB(A)
  • Tries
    • Try
      • Q(A);P_PINS(c)
      • Threat
        • QAB(A),XS(c)
      • Vars
        • R(a);N_GUARD::QAB(A)
        • S(f);N_GUARD::R1(B),XP(d)
      • Refutation
        • R(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);XR(B)::QAB(A),XS(c)
        • R(a);::QAB1(A),XS(f)
        • S(c);::QAB1(A),XS(f)
        • S(c);N_GUARD::QAR2(A)
        • S(f);OGATE::QAR2(A)
        • S(f);::QAB(A),XS(c)
      • Refutation
        • R(a);
    • Try
      • P(C);CHECK
      • Vars
        • S(f);P_SPINS(f),S_CUTR(a)::QAB(A)
      • Refutation
        • R(a);P_SPINR(a)
  • Actual
    • Q(A);P_PINS(f)
    • Threat
      • QAB1(A),XS(f)
    • Vars
      • R(a);N_GUARD::R(D)+P(C)
      • S(c);N_GUARD::R1(B),XP(d)
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