MESON Chess Problem Database

Problem Display
PID: 94653 (8/2P5/1Q6/8/8/4K3/1Rp5/1bk5 w - - 0 1)

Labai, Zoltan

Magadanskaya Pravda, 1999

8/2P5/1Q6/8/8/4K3/1Rp5/1bk5

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kd3?
      • 1...Kd1
        • 2.Qg1#
      • 1...Ba2!
    • 1.Qb4?
      • 1...Kd1
        • 2.Qd2#
      • 1...Ba2!
    • 1.Qb5?
      • 1...Kd1
        • 2.Qf1#
      • 1...Ba2!
    • 1.Qc6?
      • 1...Kd1
        • 2.Qh1#
      • 1...Ba2
        • 2.Qxc2#
      • 1...Kxb2!
    • 1.Qf6?
      • 1...Kd1
        • 2.Qf1#
      • 1...Ba2!
    • 1.Qg6?
      • 1...Kd1
        • 2.Qg1#
      • 1...Ba2
        • 2.Qxc2#
      • 1...Kxb2!
    • 1.Qb7?
      • 1...Kd1
        • 2.Qh1#
      • 1...Ba2!
    • 1.c8Q?
      • threat
        • 2.Rxb1#
      • 1...Ba2
        • 2.Qxc2#
      • 1...Kd1!
  • Keys
    • 1.Qb3!
      • 1...Kd1
        • 2.Rxb1#
      • 1...Ba2
        • 2.Qxc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);
      • Vars
        • K(b);P-FLIGHT::QAR2(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);P_PINP(c)
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAR(C)
        • B(a);N_GUARD::QAR1(C),XP(c)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT,XR(A)
    • Try
      • Q(C);
      • Vars
        • K(b);P-FLIGHT::QAR2(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);
      • Vars
        • K(b);P-FLIGHT::QAR(C)
        • B(a);N_GUARD::QAR1(C),XP(c)
      • Refutation
        • K(b);S_FLIGHT,XR(A)
    • Try
      • Q(C);
      • Vars
        • K(b);P-FLIGHT::QAR(C)
      • Refutation
        • B(a);
    • Try
      • P(D);P_PINP(c)
      • Threat
        • R1(A),XB(a)
      • Vars
        • B(a);N_GUARD::QAR1(D),XP(c)
      • Refutation
        • K(b);N_SPINP(c),P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);P-FLIGHT,P_SPINP(c)::R(A),XB(a)
      • B(a);N_GUARD::QAR1(C),XP(c)
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