MESON Chess Problem Database

Problem Display
PID: 243655 (1r2n2B/1q6/2P2N1b/Ppk5/1N2RQ2/KP1n4/1R4r1/5b2 w - - 0 1)

Banaszek, Marcin

Szachy, 1967

1r2n2B/1q6/2P2N1b/Ppk5/1N2RQ2/KP1n4/1R4r1/5b2

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qa6
      • 2.Sd7#
    • 1...Qa8
      • 2.Sd7#
    • 1...Qb6
      • 2.Sd7#
    • 1...Qd7
      • 2.Sxd7#
    • 1...Rg1
      • 2.Rc2#
    • 1...Rc2
      • 2.Rxc2#
    • 1...Rg3
      • 2.Rc2#
    • 1...Rg4
      • 2.Rc2#
    • 1...Rg5
      • 2.Rc2#
    • 1...Rg6
      • 2.Rc2#
    • 1...Rg7
      • 2.Rc2#
    • 1...Rg8
      • 2.Rc2#
    • 1...Be2
      • 2.Rc2#
    • 1...Sc1
      • 2.Qe5#
    • 1...Se1
      • 2.Qe5#
    • 1...Sxb2
      • 2.Qe5#
    • 1...Sf2
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sc7
      • 2.Sd7#
  • Tries
    • 1.Re5+?
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Kd6!
    • 1.Qf5+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Kd6!
  • Keys
    • 1.Re6!
      • threat
        • 2.Se4#
      • 1...Qxc6
        • 2.Rxc6#
      • 1...Sxb4
        • 2.Qxb4#
      • 1...Sxf6
        • 2.Qd6#
      • 1...Qg7
        • 2.Sa6#
      • 1...Qh7
        • 2.Sa6#
      • 1...Re2
        • 2.Sxd3#
      • 1...Rg7
        • 2.Rc2#
      • 1...Bg7
        • 2.Qe3#
      • 1...Sf2
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sg7
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 16
  • Sets
    • Q(g);N_GUARD,P_PINP(G)::S(I)
    • Q(g);N_GUARD::S(I)
    • Q(g);N_GUARD::S(I),XQ(g)
    • R(b);N_GUARD::R(A)
    • R(b);N_GUARD::R(A),XR(b)
    • B(a);S_CUTR(b)::R(A)
    • S(c);N_GUARD::QAR2(F)
    • S(c);N_GUARD,XR(A)::QAR2(F)
    • S(c);N_GUARD::QAR2(F),XS(c)
    • S(i);S_CUTQ(g)::S(I)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • S(c);OGATE,XR(E)::QAR2(F),XS(c)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAR2(F),XS(c)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • R(E);
    • Threat
      • S(I)
    • Vars
      • Q(g);OGATE,XP(H)::R1(E),XQ(g)
      • S(c);OGATE,XS(D)::QAB1(F),XS(c)
      • S(i);N_GUARD,XS(I)::QAB1(F)
      • Q(g);N_GUARD::S(D)
      • R(b);S_CUTB(a)::S(D),XS(c)
      • R(b);N_GUARD::R(A)
      • B(f);N_GUARD::QAB(F)
      • S(c);N_GUARD::QAR2(F)
      • S(c);N_GUARD::QAR2(F),XS(c)
      • S(i);N_GUARD::QAB1(F),XS(i)
      • S(i);N_GUARD::QAB1(F)
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