MESON Chess Problem Database

Problem Display
PID: 245062 (8/3r2p1/1rb1N1K1/5P2/3B3R/b2k2n1/Q2Pp1N1/4n1q1 w - - 0 1)

Eerkes, Allard Pieter

Schackvarlden, 1937

8/3r2p1/1rb1N1K1/5P2/3B3R/b2k2n1/Q2Pp1N1/4n1q1

#2

8 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Sxe1#
    • 1...Qe3
      • 2.Sxe1#
    • 1...Qxd4
      • 2.Sxe1#
    • 1...Rb4
      • 2.Sc5#
    • 1...Bc1
      • 2.Sc5#
    • 1...Bc5
      • 2.Sxc5#
    • 1...Be4
      • 2.Sf4#
  • Keys
    • 1.Be3!
      • threat
        • 2.Qc4#
      • 1...Qxe3
        • 2.Sxe1#
      • 1...Rb3
        • 2.Qxb3#
      • 1...Rb4
        • 2.Sc5#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Be4
        • 2.Sf4#
      • 1...Bb5
        • 2.Qb3#
      • 1...Bd5
        • 2.Rd4#
      • 1...Se4
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • Q(b);N_GUARD::S(C),XS(a)
    • Q(b);N_GUARD,XB(D)::S(C),XS(a)
    • R(g);S_CUTB(d)::S(G)
    • B(d);N_GUARD::S(G)
    • B(d);N_GUARD::S(G),XB(d)
    • B(h);P_PINP(F),P_PINS(G),SBLOCK::S(C)
  • Actual
    • B(D);
    • Threat
      • QAB1(A)
    • Vars
      • Q(b);N_GUARD,XB(D)::S(C),XS(a)
      • R(g);N_GUARD::QAR2(A),XR(g)
      • R(g);S_CUTB(d)::S(G)
      • R(i);N_GUARD::R1(E),XR(i)
      • B(h);P_PINP(F),P_PINS(G),SBLOCK::S(C)
      • B(h);P_PINS(G),S_CUTR(g)::QAR2(A)
      • B(h);P_PINS(G),S_CUTR(i)::R1(E)
      • S(f);P_PINS(C),SBLOCK::S(G)
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Developed and maintained by Brian Stephenson.
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