MESON Chess Problem Database

Problem Display
PID: 170954 (6r1/1N1p2p1/6K1/3P2R1/2PkN3/4p3/1bQ5/5b2 w - - 0 1)

Janevski, Zivko

6th Place, Liga Problemista, 1998

6r1/1N1p2p1/6K1/3P2R1/2PkN3/4p3/1bQ5/5b2

#2

7 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sed6?
      • threat
        • 2.Sb5#
      • 1...Bxc4
        • 2.Qxc4#
      • 1...e2
        • 2.Qd2#
      • 1...Bc3
        • 2.Qe4#
      • 1...Bd3+!
    • 1.Sbc5?
      • threat
        • 2.Sb3#
      • 1...Bxc4
        • 2.Qxb2#
      • 1...Bc3
        • 2.Qxc3#
      • 1...e2
        • 2.Qd3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Rb8!
    • 1.Sbd6?
      • threat
        • 2.Sb5#
      • 1...Bxc4
        • 2.Qxc4#
      • 1...e2
        • 2.Qd2#
      • 1...Bd3
        • 2.Qxb2#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Rb8!
  • Keys
    • 1.Sec5!
      • threat
        • 2.Sb3#
      • 1...Bd3+
        • 2.Qxd3#
      • 1...Bxc4
        • 2.Qxb2#
      • 1...Bc3
        • 2.Qe4#
      • 1...e2
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • B(a);OGATE,XP(B)::QAR1(A),XB(a)
        • P(c);N_GUARD,S_CUTB(a)::QAR2(A)
        • B(b);SBLOCK::QAR1(A)
      • Refutation
        • B(a);CHECK
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • B(a);SBLOCK,XP(B)::QAB(A),XB(b)
        • B(b);N_GUARD::QAB1(A),XB(b)
        • P(c);S_CUTB(a)::QAR1(A)
        • B(a);N_GUARD,P_PINS(C)::QAR1(A),XB(a)
      • Refutation
        • R(g);
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • B(a);OGATE,XP(B)::QAR1(A),XB(a)
        • P(c);N_GUARD,S_CUTB(a)::QAR2(A)
        • B(a);P_PINS(C),SBLOCK::QAB(A),XB(b)
        • B(b);N_GUARD::QAB1(A),XB(b)
      • Refutation
        • R(g);
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • B(a);CHECK,N_GUARD::QAR1(A),XB(a)
      • B(a);SBLOCK,XP(B)::QAB(A),XB(b)
      • B(b);SBLOCK::QAR1(A)
      • P(c);S_CUTB(a)::QAR1(A)
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