MESON Chess Problem Database

Problem Display
PID: 263887 (6rR/2B5/2K1B3/2N1P3/2PkNPRn/3p1p2/3P1P2/6rQ w - - 0 1)

Uysal, Achmet

Schweizerische Schachzeitung, 2010

6rR/2B5/2K1B3/2N1P3/2PkNPRn/3p1p2/3P1P2/6rQ

#2

13 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxa1#
    • 1...Rg2
      • 2.Qa1#
    • 1...Rg3
      • 2.Qa1#
    • 1...R1xg4
      • 2.Qa1#
    • 1...R8xg4
      • 2.Rd8#
    • 1...Rg5
      • 2.Rd8#
    • 1...Rg6
      • 2.Rd8#
    • 1...Rd8
      • 2.Rxd8#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Sb3#
      • 1...Rxg3
        • 2.Qa1#
      • 1...Rb8
        • 2.f5#
      • 1...Rb1!
    • 1.Sg5?
      • threat
        • 2.Sb3#
      • 1...Rxg5
        • 2.Rd8#
      • 1...Rb1
        • 2.f5#
      • 1...Rb8!
    • 1.Bd5?
      • threat
        • 2.Sb3#
        • 2.Se6#
      • 1...Rb1
        • 2.Se6#
      • 1...Rb8
        • 2.Se6#
      • 1...Re8
        • 2.Sb3#
      • 1...Rg6+!
    • 1.Rgxg8?
      • threat
        • 2.Rd8#
      • 1...Rxg8
        • 2.Qa1#
      • 1...Rg7
        • 2.Qa1#
      • 1...Sf5!
    • 1.Qxf3?
      • threat
        • 2.Sb3#
        • 2.Qxd3#
        • 2.Qe3#
      • 1...Rb1
        • 2.Qxd3#
        • 2.Qe3#
      • 1...Re1
        • 2.Sb3#
        • 2.Qxd3#
      • 1...Rg3
        • 2.Sb3#
      • 1...Rb8
        • 2.Qxd3#
        • 2.Qe3#
      • 1...Sg2
        • 2.Sb3#
        • 2.Qxd3#
      • 1...Sf5
        • 2.Sb3#
        • 2.Qxd3#
      • 1...Sxf3!
  • Keys
    • 1.f5!
      • threat
        • 2.Sb3#
      • 1...R1xg4
        • 2.Qa1#
      • 1...R8xg4
        • 2.Rd8#
      • 1...Rb1
        • 2.Sg5#
      • 1...Rb8
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(a);OGATE::QAB(A),XR(a)
    • R(a);OGATE::QAB(A)
    • R(a);OGATE,XR(G)::QAB(A)
    • R(f);OGATE,XR(G)::R(M)
    • R(f);OGATE::R(M)
    • R(f);OGATE,P_PINB(K)::R(M)
    • R(f);OGATE::R(M),XR(f)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(H)
      • Vars
        • R(a);OGATE,XS(E)::QAB(A)
        • R(f);N_GUARD::R(G)+P(F)
      • Refutation
        • R(a);
    • Try
      • S(E);
      • Threat
        • S(H)
      • Vars
        • R(f);OGATE,XS(E)::R(M)
        • R(a);N_GUARD::R(G)+P(F)
      • Refutation
        • R(f);
    • Try
      • B(K);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::S(H)
        • R(f);::S(H)
      • Refutation
        • R(f);CHECK
    • Try
      • R(G);XR(f)
      • Threat
        • R(G)
      • Vars
        • R(a);OGATE,XR(G)::QAB(A)
        • R(a);OGATE::QAB(A)
      • Refutation
        • S(e);
    • Try
      • Q(A);XP(c)
      • Threat
        • DUALS(3)
      • Vars
        • R(a);::S(H)
      • Refutation
        • S(e);XQ(A)
  • Actual
    • P(F);
    • Threat
      • S(H)
    • Vars
      • R(a);OGATE,XR(G)::QAB(A)
      • R(f);OGATE,XR(G)::R(M)
      • R(a);N_GUARD::R(G)+S(E)
      • R(f);N_GUARD::R(G)+S(E)
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