MESON Chess Problem Database

Problem Display
PID: 118463 (8/8/1K6/3p4/2k5/1R6/3p4/3Q4 w - - 0 1)

Saks, Oleg Pavlovich

Kontakt, 1997

8/8/1K6/3p4/2k5/1R6/3p4/3Q4

#2

3 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kc6?
      • 1...d4
        • 2.Qc2#
      • 1...Kd4!
    • 1.Ra3?
      • threat
        • 2.Qa4#
      • 1...Kb4
        • 2.Qb3#
        • 2.Qa4#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Rd3?
      • threat
        • 2.Qb3#
      • 1...Kb4
        • 2.Qb3#
      • 1...Kxd3!
    • 1.Re3?
      • threat
        • 2.Qa4#
      • 1...Kb4
        • 2.Qb3#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Rf3?
      • threat
        • 2.Qa4#
      • 1...Kb4
        • 2.Qb3#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Rg3?
      • threat
        • 2.Qa4#
      • 1...Kb4
        • 2.Qb3#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Rh3?
      • threat
        • 2.Qa4#
      • 1...Kb4
        • 2.Qb3#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Qg4+?
      • 1...d4
        • 2.Qe6#
        • 2.Qg8#
      • 1...Kxb3!
    • 1.Qf1+?
      • 1...Kd4
        • 2.Qf4#
      • 1...Kxb3!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qc3#
        • 2.Qd3#
      • 1...Kd4
        • 2.Qf4#
      • 1...d1Q
        • 2.Qc3#
      • 1...d1S
        • 2.Qd3#
      • 1...d1R
        • 2.Qc3#
      • 1...d4
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • R(B);
      • Threat
        • QAR2(A)
      • Vars
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • R(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT,XR(B)
    • Try
      • R(B);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • R(B);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • R(B);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • R(B);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(B)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P-FLIGHT::QAR2(A)
      • P(a);::QAR1(A)
      • P(a);::QAB1(A)
      • P(c);OGATEB,SBLOCK::QAB(A)
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