MESON Chess Problem Database

Problem Display
PID: 245773 (8/q1r1pQ1K/R1NPn3/1N1kp2p/1Pp4r/1n3P2/2R5/5B2 w - - 0 1)

Wrobel, Marian

Parallele 50, 1949

8/q1r1pQ1K/R1NPn3/1N1kp2p/1Pp4r/1n3P2/2R5/5B2

#2

10 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Bxc4#
    • 1...Rh2
      • 2.Bxc4#
    • 1...Rh3
      • 2.Bxc4#
    • 1...Sd4
      • 2.Bxc4#
    • 1...e4
      • 2.Bxc4#
      • 2.Qf5#
    • 1...exd6
      • 2.Sc3#
  • Tries
    • 1.Sxc7+?
      • 1...Kxd6
        • 2.Qxe7#
      • 1...Qxc7!
    • 1.Sd8?
      • threat
        • 2.Qxe6#
      • 1...exd6
        • 2.Rxd6#
      • 1...Sd4
        • 2.Sc3#
      • 1...Sc5!
  • Keys
    • 1.Scd4!
      • threat
        • 2.Qxe6#
      • 1...Qxd4
        • 2.Sxc7#
      • 1...Rxd4
        • 2.Sc3#
      • 1...Sxd4
        • 2.Sc3#
      • 1...exd4
        • 2.Qf5#
      • 1...exd6
        • 2.Rxd6#
      • 1...Sc5
        • 2.Bxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(c);N_GUARD::B(A),XP(b)
    • S(a);S_CUTR(c)::B(A),XP(b)
    • P(j);P_PINQ(I),SBLOCK,XP(H)::S(E)
  • Tries
    • Try
      • S(E);CHECK,XR(i)
      • Vars
        • K(d);N_SPINS(g),P-FLIGHT,XP(H)::QAB1(I),XP(j)
      • Refutation
        • Q(h);XS(E)
    • Try
      • S(G);
      • Threat
        • QAB1(I),XS(g)
      • Vars
        • P(j);OGATE,P_PINQ(I),XP(H)::R1(F),XP(j)
        • S(a);SBLOCK::S(E)
      • Refutation
        • S(a);
  • Actual
    • S(G);
    • Threat
      • QAB1(I),XS(g)
    • Vars
      • Q(h);N_GUARD,SBLOCK,XS(G)::S(E),XR(i)
      • R(c);SBLOCK,XS(G)::S(E)
      • S(a);SBLOCK,XS(G)::S(E)
      • P(e);OGATEB,XS(G)::QAR2(I)
      • P(j);OGATE,P_PINQ(I),XP(H)::R1(F),XP(j)
      • S(a);S_CUTR(i)::B(A),XP(b)
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