MESON Chess Problem Database

Problem Display
PID: 155311 (q5bR/1p1Np3/6p1/1p6/kp6/pR6/Q7/1K6 w - - 0 1)

Trautner, Dr Rolf

Der Tagesspiegel (Berlin), 2001

q5bR/1p1Np3/6p1/1p6/kp6/pR6/Q7/1K6

#2

5 + 9

15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Sc5#
    • 1...Bxb3
      • 2.Rxa8#
    • 1...Bc4
      • 2.Rxa8#
    • 1...Bd5
      • 2.Rxa8#
    • 1...Be6
      • 2.Rxa8#
    • 1...Bf7
      • 2.Rxa8#
    • 1...Bh7
      • 2.Rxa8#
  • Tries
    • 1.Rxb4+?
      • 1...Ka5
        • 2.Qxa3#
      • 1...Kxb4!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qxb4#
      • 1...a2+
        • 2.Qxa2#
      • 1...Kxb3
        • 2.Qc2#
      • 1...Ka5
        • 2.Rxa3#
      • 1...Bxb3
        • 2.Rxa8#
      • 1...Qa5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • Q(h);SBLOCK::S(D)
    • B(i);OGATE,XR(C)::R(E),XQ(h)
    • B(i);OGATE::R(E),XQ(h)
  • Tries
    • Try
      • R(C);CHECK,XP(c)
      • Vars
        • K(b);P-FLIGHT::QAR2(B),XP(a)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT,XR(C)
  • Actual
    • Q(B);N_PINP(a)
    • Threat
      • QAR1(B),XP(c)
    • Vars
      • P(a);CHECK,OGATEB::QAR2(B),XP(a)
      • K(b);OGATEB,S_FLIGHT,XR(C)::QAB1(B)
      • K(b);P-FLIGHT,P_SPINP(c)::R(C),XP(a)
      • B(i);OGATE,SBLOCK,XR(C)::R(E),XQ(h)
      • Q(h);SBLOCK::S(D)
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