MESON Chess Problem Database

Problem Display
PID: 156957 (8/n2p3Q/B1RNp1r1/2NpB3/7n/k7/1R2KP2/8 w - - 0 1)

Miecz, Ferdinand

Troll, 2015

8/n2p3Q/B1RNp1r1/2NpB3/7n/k7/1R2KP2/8

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qd3#
    • 1...Rg2
      • 2.Qd3#
    • 1...Rg4
      • 2.Qd3#
    • 1...Rg5
      • 2.Qd3#
    • 1...Rf6
      • 2.Qd3#
    • 1...Rh6
      • 2.Qd3#
    • 1...Rg7
      • 2.Qd3#
    • 1...Rg8
      • 2.Qd3#
    • 1...Sb5
      • 2.Sxb5#
    • 1...Sxc6
      • 2.Sb5#
    • 1...Sc8
      • 2.Sb5#
    • 1...d4
      • 2.Sc4#
  • Tries
    • 1.Bd3?
      • threat
        • 2.Ra6#
      • 1...Sxc6
        • 2.Sb5#
      • 1...dxc6
        • 2.Qxa7#
      • 1...d4
        • 2.Sc4#
      • 1...Rg4!
    • 1.Bc4?
      • threat
        • 2.Ra6#
      • 1...Sxc6
        • 2.Sb5#
      • 1...dxc6
        • 2.Qxa7#
      • 1...d4!
    • 1.Bb5?
      • threat
        • 2.Ra6#
      • 1...dxc6
        • 2.Qxa7#
      • 1...d4
        • 2.Sc4#
      • 1...Rg4
        • 2.Qd3#
      • 1...Sxc6!
    • 1.Bb7?
      • threat
        • 2.Ra6#
      • 1...Sxc6
        • 2.Sb5#
      • 1...d4
        • 2.Sc4#
      • 1...Rg4
        • 2.Qd3#
      • 1...dxc6!
    • 1.Ra2+?
      • 1...Kb4
        • 2.Ra4#
      • 1...Kxa2!
    • 1.Rcb6?
      • threat
        • 2.R6b3#
      • 1...Sb5
        • 2.Sxb5#
      • 1...Rg3!
    • 1.Qxh4?
      • threat
        • 2.Qa4#
        • 2.Qb4#
      • 1...Sxc6
        • 2.Sb5#
        • 2.Qa4#
      • 1...d4
        • 2.Sc4#
      • 1...Rg4!
  • Keys
    • 1.Bc8!
      • threat
        • 2.Ra6#
      • 1...Sxc6
        • 2.Sb5#
      • 1...dxc6
        • 2.Qxa7#
      • 1...d4
        • 2.Sc4#
      • 1...Rg4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(e);OGATE::QAR(I)
    • R(e);OGATE,P_PINP(C)::QAR(I)
    • S(f);N_GUARD::S(H),XS(f)
    • S(f);N_GUARD,XR(G)::S(H)
    • S(f);N_GUARD::S(H)
    • P(c);N_GUARD::S(H)
  • Tries
    • Try
      • B(F);
      • Threat
        • R(G)
      • Vars
        • S(f);N_GUARD,XR(G)::S(H)
        • P(g);OGATE,XR(G)::QAR(I),XS(f)
        • P(c);N_GUARD::S(H)
      • Refutation
        • R(e);
    • Try
      • B(F);
      • Threat
        • R(G)
      • Vars
        • S(f);N_GUARD,XR(G)::S(H)
        • P(g);OGATE,XR(G)::QAR(I),XS(f)
      • Refutation
        • P(c);
    • Try
      • B(F);
      • Threat
        • R(G)
      • Vars
        • P(g);OGATE,XR(G)::QAR(I),XS(f)
        • P(c);N_GUARD::S(H)
        • R(e);OGATE::QAR(I)
      • Refutation
        • S(f);XR(G)
    • Try
      • B(F);
      • Threat
        • R(G)
      • Vars
        • S(f);N_GUARD,XR(G)::S(H)
        • P(c);N_GUARD::S(H)
        • R(e);OGATE::QAR(I)
      • Refutation
        • P(g);XR(G)
    • Try
      • R(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(A)
      • Refutation
        • K(a);P-FLIGHT,XR(A)
    • Try
      • R(G);
      • Threat
        • R1(G)
      • Vars
        • S(f);N_GUARD::S(H),XS(f)
      • Refutation
        • R(e);
    • Try
      • Q(I);XS(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(c);N_GUARD::S(H)
      • Refutation
        • R(e);
  • Actual
    • B(F);
    • Threat
      • R(G)
    • Vars
      • S(f);N_GUARD,XR(G)::S(H)
      • P(g);OGATE,XR(G)::QAR(I),XS(f)
      • P(c);N_GUARD::S(H)
      • R(e);OGATE::QAR(I)
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