MESON Chess Problem Database

Problem Display
PID: 268932 (n1b3K1/1B1R4/2Pp4/pp1k1p2/2Rp4/1P6/1N3N1b/4Q3 w - - 0 1)

Svitek, Miroslav

Shakhmatnaya kompozitsiya, 2022

n1b3K1/1B1R4/2Pp4/pp1k1p2/2Rp4/1P6/1N3N1b/4Q3

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd7
      • 2.cxd7#
    • 1...f4
      • 2.Qe4#
  • Tries
    • 1.Kf7?
      • threat
        • 2.Qe6#
      • 1...Bxd7
        • 2.cxd7#
      • 1...bxc4
        • 2.Qxa5#
      • 1...Be5
        • 2.Qh1#
      • 1...Sc7!
    • 1.Sbd3?
      • threat
        • 2.Rc5#
      • 1...Bxd7
        • 2.cxd7#
      • 1...Be5
        • 2.Qxe5#
      • 1...bxc4!
    • 1.Re7?
      • threat
        • 2.Qh1#
      • 1...Be6+
        • 2.Qxe6#
      • 1...bxc4
        • 2.Qxa5#
      • 1...f4
        • 2.Qe4#
      • 1...Bg1!
  • Keys
    • 1.Sfd3!
      • threat
        • 2.Rc5#
      • 1...Bxd7
        • 2.cxd7#
      • 1...bxc4
        • 2.bxc4#
      • 1...Be5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(i);N_SPINP(g),OGATE,XR(H)::B(G)+P(F),XB(i)
    • P(f);N_GUARD::QAB1(A)
  • Tries
    • Try
      • K(I);S_FLIGHT
      • Threat
        • QAB1(A)
      • Vars
        • B(i);N_SPINP(g),OGATE,XR(H)::B(G)+P(F),XB(i)
        • P(d);OGATEB,XR(E)::QAR(A),XP(c)
        • B(a);SBLOCK::QAB(A)
      • Refutation
        • S(h);
    • Try
      • S(B);
      • Threat
        • R1(E)
      • Vars
        • B(i);N_SPINP(g),OGATE,XR(H)::B(G)+P(F),XB(i)
        • B(a);N_GUARD::QAR1(A),XB(a)
      • Refutation
        • P(d);XR(E)
    • Try
      • R(H);N_PINP(g)
      • Threat
        • QAB(A)
      • Vars
        • B(i);CHECK,N_GUARD::QAB1(A),XB(i)
        • P(d);OGATEB,XR(E)::QAR(A),XP(c)
        • P(f);N_GUARD::QAB1(A)
      • Refutation
        • B(a);
  • Actual
    • S(C);
    • Threat
      • R1(E)
    • Vars
      • B(i);N_SPINP(g),OGATE,XR(H)::B(G)+P(F),XB(i)
      • P(d);OGATE,XR(E)::P(D),XP(d)
      • B(a);N_GUARD::QAR1(A),XB(a)
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