MESON Chess Problem Database

Problem Display
PID: 149470 (4B3/R7/2p5/1kp1K3/1N6/3p4/3B4/5Q2 w - - 0 1)

Labai, Zoltan

3rd Prize, Pat a Mat, 2002

4B3/R7/2p5/1kp1K3/1N6/3p4/3B4/5Q2

#2

6 + 4

15174 FIDE Album (2001-2003) 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qxd3#
  • Tries
    • 1.Sxd3?
      • 1...Kc4
        • 2.Sc1#
      • 1...c4
        • 2.Qb1#
      • 1...Kb6!
    • 1.Sd5?
      • 1...c4
        • 2.Ra5#
      • 1...Kc4!
    • 1.Sxc6?
      • 1...Kc4
        • 2.Sa5#
      • 1...Kb6
        • 2.Qb1#
      • 1...c4!
    • 1.Bxc6+?
      • 1...Kc4
        • 2.Qxd3#
        • 2.Qf7#
      • 1...Kb6!
    • 1.Rb7+?
      • 1...Kc4
        • 2.Bf7#
        • 2.Qxd3#
        • 2.Qf7#
      • 1...Ka5
        • 2.Qa1#
      • 1...Ka4!
    • 1.Qxd3+?
      • 1...Kb6
        • 2.Qa6#
      • 1...c4!
    • 1.Qf3?
      • 1...Kc4
        • 2.Qxd3#
      • 1...cxb4
        • 2.Qxc6#
      • 1...c4
        • 2.Qxc6#
      • 1...Kb6!
  • Keys
    • 1.Qb1!
      • 1...Kc4
        • 2.Qxd3#
      • 1...Kb6
        • 2.Sxc6#
      • 1...cxb4
        • 2.Qxb4#
      • 1...c4
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(A),XP(a)
  • Tries
    • Try
      • S(C);P_PINP(d),XP(a)
      • Vars
        • K(b);N_SPINP(d),S_FLIGHT::QAB(A)+S(C)
        • P(c);SBLOCK::QAR(A)
      • Refutation
        • K(b);N_SPINP(d),P-FLIGHT
    • Try
      • S(C);
      • Vars
        • P(c);N_SPINP(a),P_SPINP(d),SBLOCK::R1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(C);XP(d)
      • Vars
        • K(b);S_FLIGHT::S(C)
        • K(b);N_SPINP(a),P-FLIGHT::QAR(A)
      • Refutation
        • P(c);N_SPINP(a)
    • Try
      • B(F);CHECK,XP(d)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR(A)
      • Refutation
        • K(b);N_SPINP(a),P_SPINP(d),S_FLIGHT
    • Try
      • Q(A);CHECK,P_PINP(d),XP(a)
      • Vars
        • K(b);N_SPINP(d),OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • P(c);N_SPINP(d),P_SPINP(c)
    • Try
      • Q(A);N_PINP(a),P_PINP(d)
      • Vars
        • K(b);N_SPINP(d),S_FLIGHT::QAB1(A),XP(a)
        • P(c);XS(C)::QAB1(A),XP(d)
        • P(c);::QAB1(A),XP(d)
      • Refutation
        • K(b);N_SPINP(d),P-FLIGHT
  • Actual
    • Q(A);N_PINP(a),P_PINP(d)
    • Vars
      • K(b);N_SPINP(d),S_FLIGHT::QAB1(A),XP(a)
      • K(b);N_SPINP(d),P-FLIGHT::QAR(A)+S(C),XP(d)
      • P(c);N_SPINP(d),OGATE,P_SPINP(c),XS(C)::QAR1(A),XP(c)
      • P(c);SBLOCK::QAR(A)+S(C),XP(a)
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