MESON Chess Problem Database

Problem Display
PID: 225155 (8/B1p5/BpP5/5p1q/Kp3R2/1pRpk1P1/4P2n/1b2Q1b1 w - - 0 1)

Buchwald, Julius

Chess Life, 1948

8/B1p5/BpP5/5p1q/Kp3R2/1pRpk1P1/4P2n/1b2Q1b1

#2

9 + 11

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.exf3#
    • 1...Qg6
      • 2.exd3#
    • 1...Qf7
      • 2.exd3#
    • 1...Qe8
      • 2.exd3#
    • 1...Qh3
      • 2.exd3#
    • 1...Qh4
      • 2.exd3#
    • 1...Qg5
      • 2.exd3#
    • 1...Qh6
      • 2.exd3#
    • 1...Qh7
      • 2.exd3#
    • 1...Qh8
      • 2.exd3#
    • 1...Ba2
      • 2.Rxd3#
    • 1...Sf3
      • 2.exf3#
    • 1...Sg4
      • 2.exd3#
  • Keys
    • 1.Rc5!
      • threat
        • 2.Re5#
      • 1...b5+
        • 2.Rxb5#
      • 1...dxe2
        • 2.Qc1#
      • 1...bxc5
        • 2.Bxc5#
      • 1...Qf3
        • 2.exf3#
      • 1...Qe8
        • 2.exd3#
      • 1...Qh8
        • 2.exd3#
      • 1...Sf3
        • 2.exf3#
      • 1...Sg4
        • 2.exd3#
      • 1...d2
        • 2.Qxg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • Q(i);OGATE::QAR(A)+P(B),XQ(i)
    • Q(i);N_GUARD::QAR(A)+P(B),XP(e)
    • Q(i);N_GUARD,P_PINP(H)::QAR(A)+P(B),XP(e)
    • B(a);N_GUARD::R1(C),XP(e)
    • S(c);OGATE::QAR(A)+P(B),XS(c)
    • S(c);S_CUTQ(i)::QAR(A)+P(B),XP(e)
  • Actual
    • R(C);N_PINP(e)
    • Threat
      • R(C)
    • Vars
      • P(j);CHECK,OGATEB::B(I)+R(C),XP(j)
      • P(e);N_GUARD,P_SPINP(e),XP(B)::QAB(A)
      • P(j);OGATE,P_SPINP(j),XR(C)::B(I),XP(j)
      • Q(i);OGATE::QAR(A)+P(B),XQ(i)
      • Q(i);N_GUARD,P_PINP(H)::QAR(A)+P(B),XP(e)
      • Q(i);N_GUARD::QAR(A)+P(B),XP(e)
      • S(c);OGATE::QAR(A)+P(B),XS(c)
      • S(c);S_CUTQ(i)::QAR(A)+P(B),XP(e)
      • P(e);SBLOCK::QAB(A),XB(b)
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