MESON Chess Problem Database

Problem Display
PID: 169032 (7n/1P2N2k/5Kp1/6p1/8/3Q3P/8/2B5 w - - 0 1)

Janevski, Zivko

3/4 Prize, SuperProblem 087. TT, 2013

7n/1P2N2k/5Kp1/6p1/8/3Q3P/8/2B5

#2

6 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4?
      • 1...Kh6
        • 2.Qh4#
      • 1...g4
        • 2.Qg8#
      • 1...Sf7!
    • 1.Qg3?
      • 1...Kh6
        • 2.Qh4#
      • 1...g4
        • 2.Qh4#
      • 1...Sf7!
    • 1.Qd8?
      • 1...Kh6
        • 2.Qxh8#
      • 1...g4
        • 2.Qg8#
      • 1...Sf7!
    • 1.b8R?
      • 1...Kh6
        • 2.Rxh8#
      • 1...Sf7
        • 2.Qxg6#
      • 1...g4!
  • Keys
    • 1.b8Q!
      • 1...Kh6
        • 2.Qxh8#
      • 1...g4
        • 2.Qg8#
      • 1...Sf7
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);N_PINP(b)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(a)::QAR2(B)
        • P(a);::QAB1(B)
      • Refutation
        • S(d);
    • Try
      • Q(B);N_PINP(b)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(a)::QAR2(B)
        • P(a);N_GUARD::QAR(B)
      • Refutation
        • S(d);
    • Try
      • Q(B);N_PINP(b)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(a)::QAR2(B),XS(d)
        • P(a);::QAB1(B)
      • Refutation
        • S(d);
    • Try
      • P(E);
      • Vars
        • K(c);N_SPINP(b),P-FLIGHT,P_SPINP(a)::R(E),XS(d)
        • S(d);N_GUARD::QAB1(B),XP(b)
      • Refutation
        • P(a);
  • Actual
    • P(E);
    • Vars
      • K(c);N_SPINP(b),P-FLIGHT,P_SPINP(a)::QAR2(E),XS(d)
      • P(a);::QAB1(E)
      • S(d);N_GUARD::QAB1(B),XP(b)
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