MESON Chess Problem Database

Problem Display
PID: 11725 (8/8/8/8/rpQ5/3B4/1k6/b2K4 w - - 0 1)

Veders, Visvaldis M

Mini-Matt, 1971

8/8/8/8/rpQ5/3B4/1k6/b2K4

#2

3 + 4

3753 FIDE Album (1971-1973) 1978
3296 Shakhmatny zadachi miniaturi 1987
3310 2345 Chess Problems 1997
2786 More Fun with Chess Miniatures 2000
145 StrateGems 2006
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Qxb4#
    • 1...Ra3
      • 2.Qc2#
  • Tries
    • 1.Bc2?
      • threat
        • 2.Qb3#
      • 1...Ka3
        • 2.Qb3#
      • 1...b3
        • 2.Qxb3#
      • 1...Ra3!
    • 1.Qc1+?
      • 1...Kb3
        • 2.Bc4#
      • 1...Ka2!
    • 1.Qxb4+?
      • 1...Ka2
        • 2.Bb1#
        • 2.Bc4#
      • 1...Rxb4!
  • Keys
    • 1.Bb1!
      • 1...Kxb1
        • 2.Qc2#
      • 1...Ka3
        • 2.Qa2#
      • 1...Ra2
        • 2.Qxb4#
      • 1...Ra3
        • 2.Qc2#
      • 1...Ra5
        • 2.Qxb4#
      • 1...Ra6
        • 2.Qxb4#
      • 1...Ra7
        • 2.Qxb4#
      • 1...Ra8
        • 2.Qxb4#
      • 1...b3
        • 2.Qc1#

Anticipated by 6111(1927)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,SBLOCK::QAR2(C),XP(d)
    • R(c);SBLOCK::QAR1(C)
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
        • P(d);::QAR1(C),XP(d)
      • Refutation
        • R(c);
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::B(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK,XP(d)
      • Refutation
        • R(c);XQ(C)
  • Actual
    • B(B);
    • Vars
      • K(b);P-FLIGHT,XB(B)::QAB1(C)
      • K(b);S_FLIGHT::QAR1(C)
      • R(c);N_GUARD::QAR2(C),XP(d)
      • R(c);SBLOCK::QAR1(C)
      • P(d);SBLOCK::QAB1(C)
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