MESON Chess Problem Database

Problem Display
PID: 37449 (K7/4p3/p2N3Q/r5NP/6kr/4PR2/4PPbp/5qR1 w - - 0 1)

Banny, Dimitry Nikolaevich

1st HM., Khozyain, 1993

K7/4p3/p2N3Q/r5NP/6kr/4PR2/4PPbp/5qR1

#2

10 + 8

3705 Album Russia (1992-1994) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe2
      • 2.Rxg2#
    • 1...Qa1
      • 2.Rxg2#
    • 1...Qb1
      • 2.Rxg2#
    • 1...Qc1
      • 2.Rxg2#
    • 1...Qd1
      • 2.Rxg2#
    • 1...Qe1
      • 2.Rxg2#
    • 1...Rd5
      • 2.Rg3#
      • 2.Rf4#
  • Tries
    • 1.Ka7?
      • threat
        • 2.Rg3#
        • 2.Rf4#
      • 1...Rxh5
        • 2.Rf4#
      • 1...Rxg5
        • 2.Rg3#
      • 1...exd6
        • 2.Rf4#
      • 1...Rh3
        • 2.Rf4#
      • 1...h1S
        • 2.Rf4#
      • 1...Ra4
        • 2.Rg3#
      • 1...Rf5
        • 2.Rg3#
      • 1...e5
        • 2.Rg3#
      • 1...Qxf2!
    • 1.Sge4?
      • threat
        • 2.Rg3#
      • 1...Qxf2
        • 2.Sxf2#
      • 1...Rhxh5
        • 2.Qf4#
      • 1...exd6
        • 2.Sf6#
      • 1...Rh3
        • 2.Rf4#
      • 1...h1S!
  • Keys
    • 1.Sde4!
      • threat
        • 2.Rf4#
      • 1...Qxf2
        • 2.Sxf2#
      • 1...Rxg5
        • 2.Qxg5#
      • 1...Rf5
        • 2.Rg3#
      • 1...e5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD,XP(B)::R(A),XB(b)
    • Q(a);N_GUARD::R(A),XB(b)
  • Tries
    • Try
      • K(J);N_SPINR(E),P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(e);XP(G)::R1(E)
        • R(f);XS(F)::R1(E)
        • P(h);XS(H)::R1(E)
        • R(e);::R1(E)
        • P(c);::R1(E)
        • R(f);::R1(E)
        • P(h);::R1(E)
      • Refutation
        • Q(a);P_PINP(D),XP(C)
    • Try
      • S(F);N_SPINR(E)
      • Threat
        • R1(E)
      • Vars
        • Q(a);XP(C)::S(F),XQ(a)
        • R(e);SBLOCK,XP(G)::QAR1(I)
        • P(h);N_GUARD,XS(H)::S(F)
        • R(e);SBLOCK::R1(E)
      • Refutation
        • P(c);
  • Actual
    • S(H);N_SPINR(E)
    • Threat
      • R1(E)
    • Vars
      • Q(a);XP(C)::S(H),XQ(a)
      • R(f);OGATE,XS(F)::QAR1(I),XR(f)
      • R(f);SBLOCK::R1(E)
      • P(h);N_GUARD::S(H)
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