MESON Chess Problem Database

Problem Display
PID: 278097 (6br/7p/6R1/B6B/rq1Q3K/nP1n2P1/N1Pk1P2/2R5 w - - 0 1)

Onkoud, Abdelaziz

Phenix, 2007

6br/7p/6R1/B6B/rq1Q3K/nP1n2P1/N1Pk1P2/2R5

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Bxc3#
    • 1...Bc4
      • 2.Qe3#
    • 1...Sxc2
      • 2.Rd1#
    • 1...Sc4
      • 2.Qxd3#
  • Tries
    • 1.Kh3?
      • threat
        • 2.Qe3#
        • 2.Qxd3#
      • 1...Sxc2
        • 2.Rd1#
      • 1...Bc4
        • 2.Qe3#
      • 1...Sc4
        • 2.Qxd3#
      • 1...Be6+!
    • 1.Bg4?
      • threat
        • 2.Qe3#
        • 2.Qxd3#
      • 1...Sxc2
        • 2.Rd1#
      • 1...Bc4
        • 2.Qe3#
      • 1...Sc4
        • 2.Qxd3#
      • 1...hxg6+!
    • 1.Rg4?
      • threat
        • 2.Qe3#
        • 2.Qxd3#
      • 1...Ke2
        • 2.Qe3#
      • 1...Bc4
        • 2.Qe3#
      • 1...Sc4
        • 2.Qxd3#
      • 1...Sxc2!
    • 1.c4?
      • threat
        • 2.Qe3#
      • 1...Sc2
        • 2.Rd1#
      • 1...Sxc4!
    • 1.f4?
      • threat
        • 2.Qxd3#
      • 1...Sxc2
        • 2.Rd1#
      • 1...Bc4!
    • 1.g4?
      • threat
        • 2.Qe3#
        • 2.Qxd3#
      • 1...Ke2
        • 2.Qe3#
      • 1...Bc4
        • 2.Qe3#
      • 1...Sc4
        • 2.Qxd3#
      • 1...Sxc2!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Rd1#
      • 1...Qc3
        • 2.Bxc3#
      • 1...Bc4
        • 2.Qe3#
      • 1...Sc4
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • Q(e);OGATE::B(I),XQ(e)
    • B(g);N_PINQ(G)::QAB1(G)
    • S(b);SBLOCK,XP(C)::R1(A)
    • S(b);N_PINQ(G)::QAR1(G),XS(c)
  • Tries
    • Try
      • K(H);N_SPINQ(G),P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(b);SBLOCK,XP(C)::R1(A)
        • B(g);::QAB1(G)
        • S(b);::QAR1(G),XS(c)
      • Refutation
        • B(g);CHECK
    • Try
      • B(J);N_SPINQ(G)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);SBLOCK,XP(C)::R1(A)
        • B(g);::QAB1(G)
        • S(b);::QAR1(G),XS(c)
      • Refutation
        • P(f);CHECK,XR(K)
    • Try
      • R(K);N_SPINQ(G)
      • Threat
        • DUALS(2)
      • Vars
        • K(a);N_SPINQ(e),N_SPINS(c),P-FLIGHT::QAR1(G)
        • B(g);::QAB1(G)
        • S(b);::QAR1(G),XS(c)
      • Refutation
        • S(b);XP(C)
    • Try
      • P(C);N_SPINQ(G)
      • Threat
        • QAB1(G)
      • Vars
        • S(b);SBLOCK::R1(A)
      • Refutation
        • S(b);XP(C)
    • Try
      • P(D);N_SPINQ(G)
      • Threat
        • QAR1(G),XS(c)
      • Vars
        • S(b);SBLOCK,XP(C)::R1(A)
      • Refutation
        • B(g);
    • Try
      • P(F);N_SPINQ(G)
      • Threat
        • DUALS(2)
      • Vars
        • K(a);N_SPINQ(e),N_SPINS(c),P-FLIGHT::QAR1(G)
        • B(g);::QAB1(G)
        • S(b);::QAR1(G),XS(c)
      • Refutation
        • S(b);XP(C)
  • Actual
    • R(K);
    • Threat
      • R1(A)
    • Vars
      • Q(e);OGATE::B(I),XQ(e)
      • B(g);N_PINQ(G)::QAB1(G)
      • S(b);N_PINQ(G)::QAR1(G),XS(c)
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