MESON Chess Problem Database

Problem Display
PID: 262816 (8/8/8/2K5/2Q5/2p2p2/1PrP1P2/RNkN4 w - - 0 1)

Lewandowski, Andrej

Szachy, 1952

8/8/8/2K5/2Q5/2p2p2/1PrP1P2/RNkN4

#2

8 + 4

5454 Near Snap 2022
6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd1
      • 2.Qf1#
    • 1...Rxd2
      • 2.Sa3#
    • 1...cxd2
      • 2.Sa3#
      • 2.Sbc3#
  • Keys
    • 1.Qf1!
      • 1...cxb2+
        • 2.Sdc3#
      • 1...cxd2+
        • 2.Sbc3#
      • 1...Rxb2
        • 2.Se3#
      • 1...Rxd2
        • 2.Sa3#

Anticipated by 149965(1923), 71089(1935)

This anticipates 51824(1980)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(G)
    • R(b);P_SPINP(c),SBLOCK,XP(E)::R(A)+S(B)
  • Actual
    • Q(G);
    • Vars
      • P(c);CHECK,SBLOCK,XP(D)::QAR(G)+S(C)
      • P(c);CHECK,SBLOCK,XP(E)::R(A)+S(B)
      • R(b);SBLOCK,XP(D)::QAR(G)+S(C)
      • R(b);SBLOCK,XP(E)::R(A)+S(B)
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