MESON Chess Problem Database

Problem Display
PID: 243658 (1r2rb1R/Q2bp1k1/3N3R/7p/1p2B3/8/8/K7 w - - 0 1)

Banaszek, Marcin

Szachy, 1968

1r2rb1R/Q2bp1k1/3N3R/7p/1p2B3/8/8/K7

#2

6 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Qg1#
    • 1...Bb5
      • 2.Qg1#
    • 1...Bc6
      • 2.Qg1#
    • 1...Be6
      • 2.Qd4#
    • 1...e6
      • 2.Qg1#
  • Tries
    • 1.Rg8+?
      • 1...Kxh6
        • 2.Sf7#
        • 2.Qe3#
      • 1...Kxg8!
    • 1.Qa2?
      • threat
        • 2.R8h7#
        • 2.Qf7#
        • 2.Qg8#
      • 1...exd6
        • 2.R8h7#
        • 2.Qg8#
      • 1...Ra8
        • 2.R8h7#
      • 1...Bf5
        • 2.Sxf5#
        • 2.Qf7#
        • 2.Qg8#
      • 1...Be6
        • 2.Qb2#
      • 1...e6
        • 2.Qg2#
      • 1...b3!
  • Keys
    • 1.Bd5!
      • threat
        • 2.R8h7#
      • 1...Bf5
        • 2.Sxf5#
      • 1...Be6
        • 2.Qd4#
      • 1...e6
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(c);N_GUARD,P_SPINP(d)::QAR(E)
    • B(c);P_SPINP(d)::QAB(E)
    • P(d);P_SPINB(c)::QAR(E)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • K(e);P-FLIGHT,XR(F)
    • Try
      • Q(E);
      • Threat
        • DUALS(3)
      • Vars
        • R(f);P_PINQ(E)::R1(F)
        • B(c);S_CUTP(d)::QAB(E)
        • P(d);S_CUTB(c)::QAR(E)
      • Refutation
        • P(a);
  • Actual
    • B(B);
    • Threat
      • R1(F)
    • Vars
      • B(c);N_GUARD,P_SPINP(d)::S(C),XB(c)
      • B(c);P_SPINP(d)::QAB(E)
      • P(d);P_SPINB(c)::QAR(E)
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Developed and maintained by Brian Stephenson.
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