MESON Chess Problem Database

Problem Display
PID: 245405 (Q7/2N5/p1ppp3/1p1PNpK1/3k4/Pn1B1Pp1/2R1R3/3r4 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Revista Romana de Sah, 1987

Q7/2N5/p1ppp3/1p1PNpK1/3k4/Pn1B1Pp1/2R1R3/3r4

#2

10 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd3
      • 2.Sxc6#
    • 1...b4
      • 2.Rc4#
    • 1...f4
      • 2.Re4#
    • 1...cxd5
      • 2.Sxe6#
    • 1...c5
      • 2.Sxe6#
    • 1...exd5
      • 2.Se6#
  • Tries
    • 1.Be4?
      • threat
        • 2.Sxc6#
      • 1...Kxe5
        • 2.Qh8#
      • 1...fxe4
        • 2.Rxe4#
      • 1...cxd5
        • 2.Sc6#
      • 1...dxe5
        • 2.Sxe6#
      • 1...c5
        • 2.Sc6#
      • 1...Sa5!
    • 1.Qxc6?
      • threat
        • 2.Sxe6#
        • 2.Qc3#
      • 1...Rxd3
        • 2.Sxe6#
      • 1...dxe5
        • 2.Qc3#
      • 1...exd5
        • 2.Se6#
        • 2.Qxd5#
        • 2.Qc3#
      • 1...b4
        • 2.Sxe6#
        • 2.Rc4#
        • 2.Qc4#
      • 1...Sc5!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Sxe6#
      • 1...Kc5
        • 2.Qa7#
      • 1...bxc4
        • 2.Rxc4#
      • 1...exd5
        • 2.Se6#
      • 1...Sc5
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(a);SBLOCK,XB(D)::S(G),XP(h)
    • P(e);N_GUARD::R1(A)
    • P(f);N_GUARD::R1(B)
    • P(h);XP(F)::S(I),XP(j)
    • P(h);::S(I),XP(j)
    • P(j);SBLOCK,XP(F)::S(I)
  • Tries
    • Try
      • B(D);
      • Threat
        • S(G),XP(h)
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(G)::QAB(J)
        • P(f);OGATE,XB(D)::R1(B),XP(f)
        • P(h);XP(F)::S(G)
        • P(i);SBLOCK,XS(G)::S(I),XP(j)
        • P(h);::S(G)
      • Refutation
        • S(b);
    • Try
      • Q(J);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XB(D)::S(I),XP(j)
        • P(i);XS(G)::QAB1(J)
      • Refutation
        • S(b);
  • Actual
    • B(D);
    • Threat
      • S(I),XP(j)
    • Vars
      • K(d);S_FLIGHT::QAB(J)
      • P(e);OGATE,XB(D)::R1(A),XP(e)
      • P(j);XP(F)::S(I)
      • S(b);SBLOCK::S(G),XP(h)
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