MESON Chess Problem Database

Problem Display
PID: 259585 (q5b1/b1N5/R2N1p2/2Brk1p1/2P2pP1/3pP2Q/K7/8 w - - 0 1)

Bidlen, Anton

Petite MT (Problemas), 2015

q5b1/b1N5/R2N1p2/2Brk1p1/2P2pP1/3pP2Q/K7/8

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.exd4#
    • 1...fxe3
      • 2.Qh2#
      • 2.Qxe3#
      • 2.Qg3#
    • 1...f3
      • 2.Qh2#
      • 2.Qg3#
    • 1...f5
      • 2.Qh8#
  • Tries
    • 1.Qg2?
      • threat
        • 2.Qe4#
      • 1...Rxc5
        • 2.Qb2#
      • 1...Rxd6
        • 2.Bxd6#
      • 1...Rd4
        • 2.exd4#
      • 1...Bh7
        • 2.Sf7#
      • 1...f3
        • 2.Qh2#
        • 2.Qg3#
      • 1...f5!
    • 1.Qh7?
      • threat
        • 2.Qe4#
        • 2.Qf5#
      • 1...Rxc5
        • 2.Qf5#
      • 1...Rxd6
        • 2.Bxd6#
        • 2.Qf5#
      • 1...f5
        • 2.Qxf5#
        • 2.Qg7#
        • 2.Qh8#
      • 1...Qc8
        • 2.Qe4#
      • 1...Rd4
        • 2.Qf5#
        • 2.exd4#
      • 1...Be6
        • 2.Qe4#
      • 1...Bxh7!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qe4#
      • 1...Rxc5
        • 2.Qa1#
      • 1...Rxd6
        • 2.Bxd6#
      • 1...f5
        • 2.Qh8#
      • 1...Rd4
        • 2.exd4#
      • 1...Bh7
        • 2.Sf7#
      • 1...f3
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE,P_PINP(D)::P(B),XR(c)
    • P(f);OGATEB::QAB(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • R(c);N_GUARD,P_PINP(D),XB(F)::QAB(C)
        • R(c);OGATE,P_PINP(D),XS(H)::B(F),XR(c)
        • R(c);OGATE,P_PINP(D)::P(B),XR(c)
        • B(i);N_GUARD::S(H)
      • Refutation
        • P(f);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);P_PINP(D),XB(F)::QAR1(C)
        • Q(h);::QAR1(C)
        • B(i);::QAR1(C)
      • Refutation
        • B(i);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • R(c);N_GUARD,P_PINP(D),XB(F)::QAB(C)
      • R(c);OGATE,P_PINP(D),XS(H)::B(F),XR(c)
      • P(f);OGATEB::QAB(C)
      • R(c);OGATE,P_PINP(D)::P(B),XR(c)
      • B(i);N_GUARD::S(H)
      • P(b);OGATEB::QAB(C)
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