MESON Chess Problem Database

Problem Display
PID: 10855 (8/8/8/3Q4/1kp5/8/K1Bp4/3R4 w - - 0 1)

Podushkin, S

2nd HM., L'Italia Scacchistica, 1969

8/8/8/3Q4/1kp5/8/K1Bp4/3R4

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qxd2#
    • 1...c3
      • 2.Rb1#
  • Tries
    • 1.Ka1?
      • 1...Ka3
        • 2.Qa5#
        • 2.Qc5#
        • 2.Qd6#
      • 1...Kc3
        • 2.Qxd2#
      • 1...c3!
    • 1.Kb1?
      • 1...Ka3
        • 2.Qa5#
        • 2.Qc5#
        • 2.Qd6#
      • 1...Kc3
        • 2.Qxd2#
      • 1...c3!
    • 1.Ba4?
      • 1...Kc3
        • 2.Qxd2#
      • 1...c3
        • 2.Qb5#
      • 1...Kxa4!
    • 1.Qb5+?
      • 1...Kc3
        • 2.Qb2#
      • 1...Kxb5!
    • 1.Qg5?
      • 1...Kc3
        • 2.Qxd2#
      • 1...c3!
  • Keys
    • 1.Rxd2!
      • 1...Kc3
        • 2.Qa5#
      • 1...c3
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(D),XP(a)
    • P(c);SBLOCK::R(A)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(D),XP(a)
      • Refutation
        • P(c);
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(D),XP(a)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(D),XP(a)
        • P(c);SBLOCK::QAR1(D)
      • Refutation
        • K(b);P-FLIGHT,XB(C)
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(D)
      • Refutation
        • K(b);P-FLIGHT,XQ(D)
    • Try
      • Q(D);
      • Vars
        • K(b);S_FLIGHT::QAB1(D),XP(a)
      • Refutation
        • P(c);
  • Actual
    • R(A);XP(a)
    • Vars
      • K(b);S_FLIGHT::QAB(D)
      • P(c);OGATEB,SBLOCK::R(A)
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