MESON Chess Problem Database

Problem Display
PID: 273798 (6Q1/2N1B3/2p5/4p3/2pk4/5pP1/2P2P2/1B2K3 w - - 0 1)

Zivojinovic, Aleksandar

Mat, 1972

6Q1/2N1B3/2p5/4p3/2pk4/5pP1/2P2P2/1B2K3

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qg4#
      • 2.c3#
    • 1...e4
      • 2.Qg7#
      • 2.Qh8#
  • Tries
    • 1.Kd2?
      • threat
        • 2.c3#
      • 1...Ke4
        • 2.Qg4#
        • 2.c3#
      • 1...e4
        • 2.Qg7#
        • 2.Qh8#
      • 1...c3+!
    • 1.Sb5+?
      • 1...Ke4
        • 2.c3#
      • 1...cxb5!
    • 1.Ba2?
      • threat
        • 2.Qxc4#
      • 1...Ke4
        • 2.Qg4#
      • 1...c3
        • 2.Qc4#
      • 1...e4
        • 2.Qg7#
        • 2.Qh8#
      • 1...Kc3!
    • 1.Bb4?
      • threat
        • 2.c3#
      • 1...Ke4
        • 2.Qg4#
        • 2.c3#
      • 1...e4
        • 2.Qg7#
        • 2.Qh8#
      • 1...c3!
    • 1.Qd5+?
      • 1...Kc3
        • 2.Qxe5#
      • 1...cxd5!
    • 1.Qg4+?
      • 1...e4
        • 2.Qg7#
      • 1...Kc3!
    • 1.Qg5?
      • threat
        • 2.Qe3#
      • 1...Kc3
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qg4#
        • 2.c3#
      • 1...e4
        • 2.Bf6#
        • 2.Qf6#
        • 2.Qg7#
      • 1...c3!
    • 1.Qd8+?
      • 1...Ke4
        • 2.c3#
      • 1...Kc3!
  • Keys
    • 1.Qa8!
      • 1...Kc3
        • 2.Qa1#
      • 1...Ke4
        • 2.c3#
      • 1...c3
        • 2.Qa4#
      • 1...e4
        • 2.Qh8#
      • 1...c5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • P(C)
      • Refutation
        • P(b);CHECK
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P-FLIGHT::B(A)+P(C)
      • Refutation
        • P(e);XS(F)
    • Try
      • B(A);
      • Threat
        • QAR1(H),XP(b)
      • Vars
        • K(c);N_GUARD,P-FLIGHT,S_CUTP(d)::QAR2(H)
        • P(b);::QAR1(H)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);
      • Threat
        • P(C)
      • Refutation
        • P(b);
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB(H),XP(d)
      • Refutation
        • P(e);XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • P(d);OGATEB,P_SPINP(d),SBLOCK::QAB(H)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(H);
      • Threat
        • QAB1(H)
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB(H),XP(d)
      • Refutation
        • P(b);
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);N_GUARD,P-FLIGHT::B(A)+P(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(H);
    • Vars
      • K(c);N_GUARD,S_CUTP(b),S_FLIGHT::QAB(H)
      • K(c);N_GUARD,P-FLIGHT,P_SPINP(e)::B(A)+P(C)
      • P(b);OGATEB,SBLOCK::QAR(H)
      • P(d);OGATEB,SBLOCK::QAB(H)
      • P(e);N_GUARD::S(F)
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