MESON Chess Problem Database

Problem Display
PID: 263189 (6R1/P1p1nN1B/p1r4p/K1p2rp1/N1P1k3/1pR1Pp2/b6B/2nQ4 w - - 0 1)

Dyachuk, Vasyl Vasilovich

SuperProblem, 2021

6R1/P1p1nN1B/p1r4p/K1p2rp1/N1P1k3/1pR1Pp2/b6B/2nQ4

#2

11 + 13

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rb6
      • 2.Sxc5#
    • 1...Rd6
      • 2.Sxc5#
    • 1...Re6
      • 2.Sxc5#
    • 1...Rf6
      • 2.Sxc5#
    • 1...Se2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sd5
      • 2.Qxd5#
    • 1...Sc8
      • 2.Qd5#
    • 1...Sxg8
      • 2.Qd5#
    • 1...f2
      • 2.Qg4#
      • 2.Qh1#
    • 1...g4
      • 2.Rxg4#
    • 1...h5
      • 2.Sxg5#
  • Tries
    • 1.Sd6+?
      • 1...Rxd6
        • 2.Sxc5#
      • 1...cxd6!
    • 1.Bxf5+?
      • 1...Sxf5
        • 2.Qd5#
      • 1...Kxf5!
    • 1.Re8?
      • threat
        • 2.Qd5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Rd6
        • 2.Sxc5#
      • 1...Re6
        • 2.Sxc5#
      • 1...Rg6!
    • 1.Qc2+?
      • 1...Sd3
        • 2.Qxd3#
      • 1...bxc2!
    • 1.a8Q?
      • threat
        • 2.Sxc5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sg6!
    • 1.a8B?
      • threat
        • 2.Sxc5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sg6!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qxf3#
      • 1...Rg6
        • 2.Sxc5#
      • 1...Se2
        • 2.Qd3#
      • 1...Sg6
        • 2.Qd5#
      • 1...f2
        • 2.Qf3#
        • 2.Qg4#
        • 2.Qh1#
      • 1...g4
        • 2.Rxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(j);N_GUARD::S(E),XP(f)
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XS(a)
    • S(m);N_GUARD::QAB1(A),XS(m)
    • S(m);N_GUARD::QAB1(A)
    • S(m);N_GUARD,XR(K)::QAB1(A)
    • P(h);OGATE::R(K),XP(h)
    • P(k);N_GUARD::S(I),XP(h)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • R(j);XS(I)::S(E),XP(f)
      • Refutation
        • P(l);XS(I)
    • Try
      • B(J);CHECK,XR(g)
      • Vars
        • S(m);XB(J)::QAB1(A)
      • Refutation
        • K(e);S_FLIGHT,XB(J)
    • Try
      • R(K);P_PINS(m)
      • Threat
        • QAB1(A)
      • Vars
        • S(a);N_GUARD::QAB1(A),XS(a)
        • R(j);N_GUARD::S(E),XP(f)
        • R(j);N_GUARD,N_SPINS(m)::S(E),XP(f)
      • Refutation
        • R(j);N_SPINR(g)
    • Try
      • Q(A);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • P(c);XQ(A)
    • Try
      • P(H);
      • Threat
        • S(E),XP(f)
      • Vars
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(m);N_GUARD::QAB1(A),XS(m)
      • Refutation
        • S(m);N_SPINR(g),P_SPINR(j)
    • Try
      • P(H);
      • Threat
        • S(E),XP(f)
      • Vars
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(m);N_GUARD::QAB1(A),XS(m)
      • Refutation
        • S(m);N_SPINR(g),P_SPINR(j)
  • Actual
    • S(I);
    • Threat
      • QAB1(A),XP(d)
    • Vars
      • R(j);N_GUARD,N_SPINR(g)::S(E),XP(f)
      • S(a);N_GUARD::QAB1(A)
      • S(m);N_GUARD,N_SPINR(g)::QAB1(A)
      • P(h);OGATE::R(K),XP(h)
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