MESON Chess Problem Database

Problem Display
PID: 241647 (b5BK/3P2p1/N1n1RP2/Np1k1p1p/3bn1r1/2P5/4R3/7Q w - - 0 1)

Mlynka, Karol

Hlas l'udu, 1976

b5BK/3P2p1/N1n1RP2/Np1k1p1p/3bn1r1/2P5/4R3/7Q

#2

10 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Sc7#
    • 1...Be5
      • 2.Rxc6#
    • 1...Sb4
      • 2.d8Q#
      • 2.d8R#
    • 1...Sa7
      • 2.d8Q#
      • 2.d8R#
    • 1...Se7
      • 2.d8Q#
      • 2.d8R#
    • 1...b4
      • 2.c4#
    • 1...f4
      • 2.Qxe4#
  • Tries
    • 1.Re5+?
      • 1...Kd6
        • 2.Rd5#
      • 1...Kxe5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qb3#
      • 1...Sxa5
        • 2.Qxd4#
      • 1...Sd2
        • 2.Rxc6#
      • 1...Sc5
        • 2.Sc7#
      • 1...Sd6
        • 2.R6e5#
      • 1...Se5
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • B(a);SBLOCK::S(E)
    • B(a);SBLOCK::B(I)+R(F),XS(h)
    • S(h);N_GUARD::P=Q
    • P(d);N_GUARD::P(C)
    • P(f);N_GUARD,S_CUTR(c)::QAB1(A),XS(b)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(e);N_SPINS(b),P-FLIGHT::R1(F)
      • Refutation
        • K(e);P-FLIGHT,XR(F)
  • Actual
    • Q(A);N_PINS(b),P_PINB(a)
    • Threat
      • QAB(A)
    • Vars
      • S(h);N_GUARD,XS(D)::QAR1(A),XB(a)
      • S(b);N_SPINB(a)::B(I)+R(F),XS(h)
      • S(b);SBLOCK::S(E)
      • S(b);SBLOCK::B(I)+R(F),DCHECK
      • S(h);N_GUARD::QAR1(A),XB(a)
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