MESON Chess Problem Database

Problem Display
PID: 181951 (b2N3K/4Pp2/3p1RPQ/2bk1p2/1BpPp3/2p3rp/r3Nq2/3R4 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Grinchenko, Dmitry

Ryabtsev, Volodimir Grigorovich

17/18 Place, 10. WCCT, 2016-2017

b2N3K/4Pp2/3p1RPQ/2bk1p2/1BpPp3/2p3rp/r3Nq2/3R4

#2

10 + 13

16140 10. WCCT Award 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Sf4#
      • 2.Rxf5#
    • 1...Qg1
      • 2.Sf4#
      • 2.Rxf5#
    • 1...Qe3
      • 2.Rxf5#
    • 1...Qxe2
      • 2.Rxf5#
    • 1...Qg2
      • 2.Sf4#
      • 2.Rxf5#
    • 1...Qh2
      • 2.Sf4#
      • 2.Rxf5#
    • 1...Qf4
      • 2.Sxf4#
    • 1...Rg1
      • 2.Sxc3#
    • 1...Rg2
      • 2.Sxc3#
    • 1...Rg4
      • 2.Sxc3#
    • 1...Rg5
      • 2.Sxc3#
    • 1...Rxg6
      • 2.Sxc3#
    • 1...Bb6
      • 2.Rxd6#
    • 1...Ba7
      • 2.Rxd6#
    • 1...e3
      • 2.Sxc3#
    • 1...f4
      • 2.Rf5#
  • Tries
    • 1.Qf4?
      • threat
        • 2.Rxf5#
      • 1...Qxd4
        • 2.Qxf5#
      • 1...Qxf4
        • 2.Sxf4#
      • 1...Bxd4
        • 2.Qxd6#
      • 1...Rg5
        • 2.Sxc3#
      • 1...fxg6!
    • 1.e8Q?
      • threat
        • 2.Qxf7#
      • 1...Qxd4
        • 2.Sf4#
      • 1...Bxd4
        • 2.Qb5#
      • 1...fxg6
        • 2.Qf7#
        • 2.Qe6#
        • 2.Qg8#
      • 1...e3
        • 2.Sxc3#
      • 1...Ra7!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qxf7#
      • 1...Qxd4
        • 2.Rxf5#
      • 1...Bxd4
        • 2.Rxd6#
      • 1...fxg6
        • 2.Qf7#
        • 2.Qg8#
      • 1...e3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 11
  • Sets
    • Q(b);N_GUARD::R(E),XP(j)
    • Q(b);N_GUARD,XS(B)::R(E),XP(j)
    • Q(b);N_GUARD::S(B),XQ(b)
    • R(d);N_GUARD::S(B),XP(c)
    • R(d);N_GUARD,XP(F)::S(B),XP(c)
    • B(h);N_GUARD::R1(E),XP(k)
    • P(g);S_CUTR(d)::S(B),XP(c)
    • P(j);S_CUTQ(b)::R(E)
  • Tries
    • Try
      • Q(G);
      • Threat
        • R(E),XP(j)
      • Vars
        • Q(b);N_GUARD,P_PINR(E),P_SPINQ(b),XP(D)::QAR2(G),XP(j)
        • Q(b);XQ(G)::S(B),XQ(b)
        • B(h);N_GUARD,P_PINR(E),P_SPINB(h),XP(D)::QAR1(G),XP(k)
        • R(d);N_GUARD::S(B),XP(c)
      • Refutation
        • P(l);XP(F)
    • Try
      • P(H);
      • Threat
        • QAB(H),XP(l)
      • Vars
        • Q(b);N_GUARD,P_PINR(E),P_SPINQ(b),XP(D)::S(B)
        • B(h);OGATEB,P_PINR(E),P_SPINB(h),XP(D)::QAR2(H)
        • P(g);S_CUTR(d)::S(B),XP(c)
      • Refutation
        • R(a);
  • Actual
    • Q(G);
    • Threat
      • QAB(G),XP(l)
    • Vars
      • Q(b);N_GUARD,P_SPINQ(b),XP(D)::R(E),XP(j)
      • B(h);N_GUARD,P_SPINB(h),XP(D)::R1(E),XP(k)
      • P(g);S_CUTR(d)::S(B),XP(c)
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