MESON Chess Problem Database

Problem Display
PID: 238824 (1rN5/8/3P2p1/QbpP3r/3kP2p/PP1NpP2/2P1p2B/4K3 w - - 0 1)

Janevski, Zivko

Kudesnik, 2013

1rN5/8/3P2p1/QbpP3r/3kP2p/PP1NpP2/2P1p2B/4K3

#2

12 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Bxe5#
    • 1...Rh6
      • 2.Be5#
    • 1...Rh7
      • 2.Be5#
    • 1...Rh8
      • 2.Be5#
    • 1...Bxd3
      • 2.c3#
    • 1...Ba4
      • 2.Qxc5#
    • 1...Ba6
      • 2.Qxc5#
    • 1...Bc6
      • 2.Qxc5#
    • 1...Bd7
      • 2.Qxc5#
    • 1...Be8
      • 2.Qxc5#
    • 1...g5
      • 2.Be5#
  • Tries
    • 1.Sxc5?
      • threat
        • 2.Se6#
      • 1...Kxc5
        • 2.Qb4#
      • 1...Bd7
        • 2.c3#
      • 1...Re5!
    • 1.Qxb5?
      • threat
        • 2.Qc4#
        • 2.Qxc5#
      • 1...Kc3
        • 2.Qc4#
        • 2.Qxc5#
      • 1...Rxd5
        • 2.Qc4#
      • 1...Rxc8
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
      • 1...Rxb5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Se6#
      • 1...Ke5
        • 2.Qc3#
      • 1...Re5
        • 2.c3#
      • 1...Bd7
        • 2.Sxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(g);N_GUARD::B(C),XR(g)
    • R(g);N_GUARD::B(C)
    • B(e);SBLOCK,XS(F)::P(B)
    • B(e);OGATE::QAB1(I),XP(f)
    • P(h);S_CUTR(g)::B(C)
  • Tries
    • Try
      • S(F);XP(f)
      • Threat
        • S(F)
      • Vars
        • K(c);P_SPINB(e),S_FLIGHT,XS(F)::QAB1(I)
        • B(e);::P(B)
      • Refutation
        • R(g);
    • Try
      • Q(I);XB(e)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);XP(J)::QAR1(I)
        • R(i);XS(L)::QAR1(I)
        • P(f);::QAR1(I),XP(f)
      • Refutation
        • R(i);XQ(I)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(c);S_FLIGHT::QAB(I)
      • R(g);SBLOCK::P(B)
      • B(e);N_GUARD::S(F),XP(a)
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