MESON Chess Problem Database

Problem Display
PID: 241711 (7B/3Q4/8/p7/4b3/3Nk3/8/4K3 w - - 0 1)

Mlynka, Karol

Kudesnik, 2013

7B/3Q4/8/p7/4b3/3Nk3/8/4K3

#2

4 + 3

15148 Sadier Collection 2021
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qh3#
    • 1...Bf3
      • 2.Qd4#
  • Tries
    • 1.Bd4+?
      • 1...Kf3
        • 2.Qh3#
      • 1...Kxd3!
    • 1.Qe6?
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kf3
        • 2.Qh3#
      • 1...a4!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qe2#
      • 1...Kxd3
        • 2.Qe2#
      • 1...Bxd3
        • 2.Bd4#
      • 1...Bf3
        • 2.Qd4#

This anticipates 269222(2021)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::QAR2(C)
    • B(b);SBLOCK::QAB1(C)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • Q(C);P_PINB(b)
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XS(B)::QAR2(C)
        • K(a);N_SPINB(b),P-FLIGHT::QAR2(C)
      • Refutation
        • P(c);
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT,XS(B)::QAB1(C)
      • B(b);SBLOCK,XS(B)::B(D)
      • B(b);OGATE,SBLOCK::QAB1(C)
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