MESON Chess Problem Database

Problem Display
PID: 90092 (8/5p2/3R4/1K2prbb/pN2k1B1/Q7/5nN1/1r6 w - - 0 1)

Schneider, Vilmos

Die Schwalbe 102. TT, 1951

8/5p2/3R4/1K2prbb/pN2k1B1/Q7/5nN1/1r6

#2

6 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb4+
      • 2.Qxb4#
    • 1...Rf3
      • 2.Qxf3#
    • 1...Rf4
      • 2.Qe3#
    • 1...Be3
      • 2.Qxe3#
    • 1...Bf4
      • 2.Qf3#
    • 1...Bh4
      • 2.Qe3#
    • 1...Bf6
      • 2.Qe3#
    • 1...Be7
      • 2.Qe3#
    • 1...Bd8
      • 2.Qe3#
    • 1...Sd1
      • 2.Qd3#
    • 1...Sh1
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sh3
      • 2.Qd3#
    • 1...Sxg4
      • 2.Qd3#
  • Keys
    • 1.Qxa4!
      • threat
        • 2.Qa8#
      • 1...Rxb4+
        • 2.Qxb4#
      • 1...Ra1
        • 2.Sa2#
      • 1...Rc1
        • 2.Sc2#
      • 1...Rd1
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 13
  • Sets
    • R(a);CHECK,OGATE,XS(C)::QAR(B),XR(a)
    • R(f);N_GUARD::QAB1(B),XR(f)
    • R(f);S_CUTB(g)::QAR1(B)
    • B(g);N_GUARD::QAR1(B),XB(g)
    • B(g);S_CUTR(f)::QAB1(B)
    • B(g);N_GUARD::QAR1(B)
    • S(b);N_GUARD::QAB1(B)
    • S(b);N_GUARD::QAB1(B),XS(b)
    • S(b);N_GUARD,XB(D)::QAB1(B)
  • Actual
    • Q(B);XP(c)
    • Threat
      • QAB(B)
    • Vars
      • R(a);CHECK,OGATE,P_SPINR(a),XS(C)::QAR(B),XR(a)
      • R(a);N_PINS(C)::QAR(B)+S(C)
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