MESON Chess Problem Database

Problem Display
PID: 174525 (8/p2N1nK1/1pp2N2/8/b1kp3R/1R3Q2/2Pr1p2/b4n2 w - - 0 1)

Volchek, Viktor Fedorovich

2nd HM., Belchikov-60 JT, 2007

8/p2N1nK1/1pp2N2/8/b1kp3R/1R3Q2/2Pr1p2/b4n2

#2

7 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc2
      • 2.Qd3#
    • 1...Re2
      • 2.Qxe2#
      • 2.Qd3#
    • 1...Rd3
      • 2.Qxd3#
    • 1...Bc3
      • 2.Qxc3#
    • 1...Bxb3
      • 2.Qxb3#
    • 1...b5
      • 2.Qxc6#
    • 1...c5
      • 2.Qd5#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Qxf7#
      • 1...d3+
        • 2.Sge5#
      • 1...Bxb3
        • 2.Qxb3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Se5
        • 2.Sgxe5#
      • 1...Sg5
        • 2.Sge5#
      • 1...Sd6
        • 2.Sge5#
      • 1...Sh6
        • 2.Sge5#
      • 1...Sd8
        • 2.Sge5#
      • 1...Sh8
        • 2.Sge5#
      • 1...Re2!
    • 1.Sxb6+?
      • 1...Kc5
        • 2.Se4#
      • 1...axb6!
    • 1.Qe2+?
      • 1...Rd3
        • 2.Qxd3#
        • 2.Qe6#
      • 1...Rxe2!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qxf7#
      • 1...d3+
        • 2.Sc3#
      • 1...Kd5
        • 2.Qxf7#
      • 1...Bxb3
        • 2.Qxb3#
      • 1...Se3
        • 2.Sxd2#
      • 1...Se5
        • 2.Sd6#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sh6
        • 2.Sd6#
      • 1...Sd8
        • 2.Sd6#
      • 1...Sh8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD,XP(A)::QAB1(C)
    • R(c);N_GUARD::QAB1(C),XR(c)
    • B(a);N_GUARD::QAR1(C),XB(a)
    • B(e);OGATE,XR(B)::QAB1(C),XB(e)
    • P(h);S_CUTB(e)::QAR2(C),XP(i)
    • P(i);N_GUARD::QAB1(C)
  • Tries
    • Try
      • S(E);N_PINP(g)
      • Threat
        • QAB(C),XS(k)
      • Vars
        • P(g);CHECK::R(D)+S(E),DCHECK
        • B(e);OGATE,XR(B)::QAB1(C),XB(e)
        • S(b);N_GUARD::S(E),XS(b)
        • S(k);N_GUARD::S(E),XS(k)
        • S(k);N_GUARD::S(E)
      • Refutation
        • R(c);
    • Try
      • S(F);CHECK,XP(h)
      • Vars
        • K(f);N_SPINP(g),P-FLIGHT::S(E)
      • Refutation
        • P(j);XS(F)
    • Try
      • Q(C);CHECK
      • Refutation
        • R(c);XQ(C)
  • Actual
    • S(E);N_PINP(g)
    • Threat
      • QAB(C),XS(k)
    • Vars
      • P(g);CHECK::R(D)+S(E)
      • K(f);S_FLIGHT::QAB(C),XS(k)
      • B(e);OGATE,XR(B)::QAB1(C),XB(e)
      • S(b);N_GUARD::S(E),XR(c)
      • S(k);N_GUARD::S(E)
      • S(k);N_GUARD::S(E),XS(k)
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