MESON Chess Problem Database

Problem Display
PID: 176046 (KN6/1P3p2/1p4br/pkp1n3/p1N4R/P5q1/Q7/3r4 w - - 0 1)

Kraemer, Wilhelm

Schach-Echo, 1936

KN6/1P3p2/1p4br/pkp1n3/p1N4R/P5q1/Q7/3r4

#2

7 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Qb2#
    • 1...Qxa3
      • 2.Sxa3#
    • 1...Qg5
      • 2.Qb2#
    • 1...Ra1
      • 2.Sd6#
    • 1...Rb1
      • 2.Sd6#
    • 1...Rc1
      • 2.Sd6#
    • 1...Re1
      • 2.Sd6#
    • 1...Rf1
      • 2.Sd6#
    • 1...Rg1
      • 2.Sd6#
    • 1...Rh1
      • 2.Sd6#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Bd3
      • 2.Qb2#
    • 1...Sf3
      • 2.Qb2#
    • 1...Sxc4
      • 2.Qxc4#
  • Keys
    • 1.Qe2!
      • threat
        • 2.Sd6#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Bd3
        • 2.Qb2#
      • 1...Sd3
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • Q(b);N_GUARD::QAR(A)
    • Q(b);XP(B)::S(C),XQ(b)
    • R(a);N_GUARD::S(C)
    • R(a);N_GUARD::S(C),XR(a)
    • B(i);S_CUTQ(b)::QAR(A)
    • S(g);S_CUTQ(b)::QAR(A)
    • S(g);OGATE,XS(C)::QAB1(A),XS(g)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+S(C),DCHECK
    • Vars
      • S(g);OGATE,P_SPINS(g),XS(C)::QAB1(A),XS(g)
      • R(a);::QAB(A)+S(C),DCHECK,XR(a)
      • B(i);S_CUTQ(b)::QAR(A)
      • S(g);OGATE::QAB(A)
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