MESON Chess Problem Database

Problem Display
PID: 107324 (2Q5/3p4/1n2pBK1/8/1N2k3/2pNp3/1b4P1/3R4 w - - 0 1)

Murdzia, Piotr

Dziennik Baltycki, 1990

2Q5/3p4/1n2pBK1/8/1N2k3/2pNp3/1b4P1/3R4

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sa4
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sd5
      • 2.Qc4#
    • 1...Sa8
      • 2.Qc4#
    • 1...d5
      • 2.Qxe6#
    • 1...d6
      • 2.Qxe6#
  • Tries
    • 1.Kg5?
      • threat
        • 2.Sc5#
      • 1...Sa4
        • 2.Qc4#
      • 1...d6
        • 2.Qxe6#
      • 1...e2!
    • 1.Rh1?
      • threat
        • 2.Rh4#
      • 1...Sd5
        • 2.Qc4#
      • 1...e2!
    • 1.Qc5?
      • threat
        • 2.Qd4#
        • 2.Qe5#
      • 1...Sc4
        • 2.Qd4#
        • 2.Qxc4#
      • 1...Sd5
        • 2.Qd4#
        • 2.Qc4#
      • 1...e5
        • 2.Qxe5#
      • 1...d5
        • 2.Qd4#
      • 1...d6
        • 2.Qd4#
      • 1...c2!
    • 1.Qc6+?
      • 1...Sd5
        • 2.Qc4#
      • 1...d5
        • 2.Qxe6#
      • 1...dxc6!
    • 1.Qc7?
      • threat
        • 2.Sc5#
        • 2.Qf4#
        • 2.Qe5#
      • 1...e2
        • 2.Qf4#
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...c2
        • 2.Sc5#
        • 2.Qf4#
      • 1...Sa4
        • 2.Qf4#
        • 2.Qe5#
        • 2.Qc4#
      • 1...Sc4
        • 2.Sc5#
        • 2.Qf4#
        • 2.Qxc4#
      • 1...Sd5
        • 2.Sc5#
        • 2.Qe5#
        • 2.Qc4#
      • 1...d6!
    • 1.Qb8?
      • threat
        • 2.Sc5#
        • 2.Qf4#
        • 2.Qe5#
      • 1...e2
        • 2.Qf4#
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Sd5
        • 2.Sc5#
        • 2.Qe5#
      • 1...Sa4
        • 2.Qf4#
        • 2.Qe5#
      • 1...Sc4
        • 2.Sc5#
        • 2.Qf4#
      • 1...c2
        • 2.Sc5#
        • 2.Qf4#
      • 1...d6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sc5#
      • 1...Kxd5
        • 2.Sf2#
      • 1...Sxd5
        • 2.Qc4#
      • 1...exd5
        • 2.Qe8#
      • 1...Ba3
        • 2.Sxc3#
      • 1...Sa4
        • 2.Qc4#
      • 1...d6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(e);N_GUARD::QAR2(G)
    • S(e);N_GUARD::QAR2(G),XS(e)
    • P(g);OGATE::QAR2(G),XP(f)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • S(C)
      • Vars
        • S(e);N_GUARD::QAR2(G)
        • P(g);OGATE::QAR2(G),XP(f)
      • Refutation
        • P(c);
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • S(e);N_GUARD::QAR2(G)
      • Refutation
        • P(c);
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);::QAR1(G),XP(f)
        • P(g);::QAR1(G)
      • Refutation
        • P(b);
    • Try
      • Q(G);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::QAR2(G)
        • P(g);N_GUARD,P_SPINP(g)::QAR2(G),XP(f)
      • Refutation
        • P(g);XQ(G)
    • Try
      • Q(G);
      • Threat
        • DUALS(3)
      • Vars
        • P(f);::QAR1(G),XP(f)
      • Refutation
        • P(g);
    • Try
      • Q(G);
      • Threat
        • DUALS(3)
      • Vars
        • P(f);::QAR1(G),XP(f)
      • Refutation
        • P(g);
  • Actual
    • S(D);
    • Threat
      • S(C)
    • Vars
      • K(d);S_FLIGHT,XS(D)::R(A)+S(C)
      • S(e);N_GUARD,XS(D)::QAR2(G)
      • P(f);OGATEB,SBLOCK,XS(D)::QAR(G)
      • B(a);N_GUARD::S(D),XP(b)
      • S(e);N_GUARD::QAR2(G)
      • P(g);OGATE::QAR2(G),XP(f)
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