MESON Chess Problem Database

Problem Display
PID: 200183 (2rr4/5Pp1/3NPn2/R1Pp1Q2/1ppkP1p1/1PNPb1R1/1K1P2n1/5B2 w - - 0 1)

Eerkes, Allard Pieter

Suomen Shakki, 1990

2rr4/5Pp1/3NPn2/R1Pp1Q2/1ppkP1p1/1PNPb1R1/1K1P2n1/5B2

#2

14 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Se2#
    • 1...Bxd2
      • 2.Se2#
    • 1...Bf2
      • 2.Se2#
    • 1...Bf4
      • 2.Se2#
    • 1...Bg5
      • 2.Se2#
    • 1...Bh6
      • 2.Se2#
    • 1...Se1
      • 2.dxe3#
    • 1...Sf4
      • 2.dxe3#
    • 1...Sh4
      • 2.dxe3#
    • 1...Sxe4
      • 2.Qxd5#
    • 1...Sh5
      • 2.Qxd5#
    • 1...Sd7
      • 2.Qxd5#
    • 1...Sh7
      • 2.Qxd5#
    • 1...Se8
      • 2.Qxd5#
    • 1...Sg8
      • 2.Qxd5#
    • 1...bxc3+
      • 2.dxc3#
    • 1...dxe4
      • 2.Scb5#
      • 2.Sdb5#
    • 1...g5
      • 2.Qxf6#
    • 1...g6
      • 2.Qxf6#
  • Tries
    • 1.Sb7?
      • threat
        • 2.Sb5#
      • 1...bxc3+
        • 2.dxc3#
      • 1...Rxc5!
    • 1.exd5?
      • threat
        • 2.Se2#
      • 1...bxc3+
        • 2.dxc3#
      • 1...Sf4
        • 2.dxe3#
      • 1...Se4
        • 2.Qxe4#
      • 1...cxd3!
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Qe5#
      • 1...bxc3+
        • 2.dxc3#
      • 1...dxc4
        • 2.Sb5#
      • 1...Bf4
        • 2.Se2#
      • 1...Sd7
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 15
  • Sets
    • B(b);::S(E)
    • B(b);XP(C)::S(E)
    • S(a);N_GUARD::P(C),XB(b)
    • S(h);N_GUARD,XP(H)::QAR1(K),XP(g)
    • S(h);N_GUARD::QAR1(K),XP(g)
    • P(c);CHECK,OGATE,XS(E)::P(C),XP(c)
    • P(i);N_GUARD::QAB(K),XS(h)
  • Tries
    • Try
      • S(L);
      • Threat
        • S(E)
      • Vars
        • P(c);CHECK,OGATE,XS(E)::P(C),XP(c)
      • Refutation
        • R(j);XP(J)
    • Try
      • P(H);XP(g)
      • Threat
        • S(E)
      • Vars
        • P(c);CHECK,OGATE,XS(E)::P(C),XP(c)
        • S(a);N_GUARD::P(C),XB(b)
        • S(h);N_GUARD::QAR1(K),XS(h)
      • Refutation
        • P(d);XP(F)
  • Actual
    • S(L);XP(d)
    • Threat
      • QAB1(K)
    • Vars
      • P(c);CHECK,OGATE,XS(E)::P(C),XP(c)
      • P(g);XS(L)::S(E)
      • B(b);::S(E)
      • S(h);N_GUARD,S_CUTR(k)::QAR1(K),XP(g)
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