MESON Chess Problem Database

Problem Display
PID: 65342 (8/2p5/Q7/6B1/1k6/1p1R4/8/1K6 w - - 0 1)

Stocchi, Ottavio

2nd HM.=, Probleemblad 089. TT, 1953

8/2p5/Q7/6B1/1k6/1p1R4/8/1K6

#2

4 + 3

5407 Selected Stocchi (II) 2004
56 The Problemist 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Be7#
    • 1...c5
      • 2.Bd2#
  • Tries
    • 1.Kb2?
      • 1...Kc5
        • 2.Be7#
      • 1...c5
        • 2.Bd2#
        • 2.Rxb3#
      • 1...c6!
    • 1.Bc1?
      • threat
        • 2.Ba3#
      • 1...Kc5
        • 2.Ba3#
      • 1...b2!
    • 1.Rd4+?
      • 1...Kc3
        • 2.Qd3#
        • 2.Qc4#
      • 1...Kc5!
    • 1.Rd5?
      • threat
        • 2.Bd2#
      • 1...Kc3
        • 2.Bd2#
      • 1...b2!
    • 1.Qb5+?
      • 1...Ka3
        • 2.Bc1#
        • 2.Rxb3#
        • 2.Qxb3#
        • 2.Qa5#
      • 1...Kxb5!
    • 1.Qa4+?
      • 1...Kc5
        • 2.Be3#
      • 1...Kxa4!
  • Keys
    • 1.Qc6!
      • 1...Ka3
        • 2.Be7#
      • 1...Ka5
        • 2.Bd2#
      • 1...b2
        • 2.Bd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(b);S_FLIGHT::B(C)
    • P(c);SBLOCK::B(C)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(C)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Threat
        • B(C)
      • Vars
        • K(b);S_FLIGHT::B(C)
      • Refutation
        • P(a);
    • Try
      • R(B);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(B);
      • Threat
        • B(C)
      • Vars
        • K(b);S_FLIGHT::B(C)
      • Refutation
        • P(a);
    • Try
      • Q(D);CHECK
      • Refutation
        • K(b);P-FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);S_FLIGHT::B(C)
      • Refutation
        • K(b);P-FLIGHT,XQ(D)
  • Actual
    • Q(D);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::B(C)
      • K(b);S_FLIGHT::B(C)
      • P(a);::B(C)
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