MESON Chess Problem Database

Problem Display
PID: 79120 (2q5/8/pP1Q1PBB/K4Pr1/2P1k1N1/1Np2r1R/1P2n3/3n3b w - - 0 1)

Lipton, Michael

The Tablet, 1962

(First published on Sat Jun 16 1962)

2q5/8/pP1Q1PBB/K4Pr1/2P1k1N1/1Np2r1R/1P2n3/3n3b

#2

12 + 9

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf5+
      • 2.Sc5#
    • 1...Qe6
      • 2.Sc5#
    • 1...Qb7
      • 2.Sc5#
    • 1...Qd7
      • 2.Sc5#
    • 1...Qc5+
      • 2.Sxc5#
    • 1...Qa8
      • 2.Sc5#
    • 1...Qb8
      • 2.Sc5#
    • 1...Qd8
      • 2.Sc5#
    • 1...Qe8
      • 2.Sc5#
    • 1...Qf8
      • 2.Sc5#
    • 1...Qg8
      • 2.Sc5#
    • 1...Qh8
      • 2.Sc5#
    • 1...Rf1
      • 2.Qe5#
    • 1...Rf2
      • 2.Qe5#
    • 1...Rd3
      • 2.Qe5#
    • 1...Rf4
      • 2.Qe5#
      • 2.Qd3#
      • 2.Qd5#
    • 1...Rfxf5+
      • 2.Qe5#
    • 1...Rxg4
      • 2.Qd5#
    • 1...Rgxf5+
      • 2.Qd5#
    • 1...Rh5
      • 2.Qd5#
    • 1...Rxg6
      • 2.Qd5#
    • 1...Sc1
      • 2.Qd4#
    • 1...Sg1
      • 2.Qd4#
    • 1...Sg3
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sf4
      • 2.Qd4#
    • 1...cxb2
      • 2.Sd2#
    • 1...c2
      • 2.Sd2#
  • Keys
    • 1.bxc3!
      • threat
        • 2.Sd2#
      • 1...Qxf5+
        • 2.Sc5#
      • 1...Qc5+
        • 2.Sxc5#
      • 1...Rfxf5+
        • 2.Qe5#
      • 1...Rgxf5+
        • 2.Qd5#
      • 1...Rxg6
        • 2.Qd5#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Rd3
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 20
  • Sets
    • Q(i);CHECK,N_GUARD,P_SPINQ(i),XP(G)::S(B)
    • Q(i);N_GUARD::S(B)
    • Q(i);CHECK,N_GUARD,N_PINP(G)::S(B),XQ(i)
    • R(e);::QAR1(I)
    • R(e);CHECK,P_SPINR(e),XP(G)::QAR1(I)
    • R(g);N_PINP(G),XS(E)::QAB1(I)
    • R(g);CHECK,P_SPINR(g),XP(G)::QAB1(I)
    • R(g);::QAB1(I)
    • R(g);N_PINP(G),XB(K)::QAB1(I)
    • S(c);N_GUARD::QAR1(I)
    • S(c);N_GUARD::QAR1(I),XS(c)
    • S(c);N_GUARD,SBLOCK::QAR1(I)
    • P(d);N_GUARD,XP(A)::S(B)
    • P(d);N_GUARD::S(B)
  • Actual
    • P(A);XP(d)
    • Threat
      • S(B)
    • Vars
      • Q(i);CHECK,N_GUARD,P_SPINQ(i),XP(G)::S(B)
      • Q(i);CHECK,N_GUARD,N_PINP(G)::S(B),XQ(i)
      • R(e);CHECK,P_SPINR(e),XP(G)::QAR1(I)
      • R(g);CHECK,P_SPINR(g),XP(G)::QAB1(I)
      • R(g);N_PINP(G),XB(K)::QAB1(I)
      • S(c);N_GUARD::QAR1(I),XS(c)
      • R(e);::QAR1(I)
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