MESON Chess Problem Database

Problem Display
PID: 158368 (8/8/K2N2b1/p3p3/3N1r2/3pk1P1/1Q1n3R/7B w - - 0 1)

Nestorescu, Virgil

Revista Romana de Sah, 1952

8/8/K2N2b1/p3p3/3N1r2/3pk1P1/1Q1n3R/7B

#2

7 + 7

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Qxd2#
    • 1...Sb1
      • 2.Sc4#
    • 1...Sf1
      • 2.Sc4#
    • 1...Sb3
      • 2.Sc4#
    • 1...Sf3
      • 2.Qf2#
    • 1...Sc4
      • 2.Sxc4#
    • 1...Se4
      • 2.Sc4#
    • 1...exd4
      • 2.Qxd2#
  • Tries
    • 1.S4f5+?
      • 1...Rxf5
        • 2.Qb6#
      • 1...Bxf5!
    • 1.Qc3?
      • threat
        • 2.Sc2#
        • 2.Re2#
      • 1...Rxd4
        • 2.Qxd2#
      • 1...exd4
        • 2.Qxd2#
      • 1...Bh5
        • 2.Sc2#
      • 1...Rf2!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qxd2#
      • 1...Rxf3
        • 2.Qb6#
      • 1...Sxf3
        • 2.Qf2#
      • 1...Sb1
        • 2.Qf2#
      • 1...Sf1
        • 2.Qf2#
      • 1...Sb3
        • 2.Qf2#
      • 1...Sc4
        • 2.Qf2#
      • 1...Se4
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(d);SBLOCK,XS(E)::QAB1(B),XS(a)
    • S(a);N_GUARD::S(G)
    • S(a);OGATE::QAB1(B)
    • S(a);N_GUARD::S(G),XS(a)
    • P(f);SBLOCK,XS(E)::QAB1(B),XS(a)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • R(d);XS(E)::QAB(B)
      • Refutation
        • B(g);XS(E)
    • Try
      • Q(B);P_PINP(b)
      • Threat
        • DUALS(2)
      • Vars
        • R(d);SBLOCK,XS(E)::QAB1(B),XS(a)
        • P(f);SBLOCK,XS(E)::QAB1(B),XS(a)
        • B(g);::S(E)
      • Refutation
        • R(d);
  • Actual
    • S(E);
    • Threat
      • QAB1(B),XS(a)
    • Vars
      • R(d);N_GUARD,XS(E)::QAB(B)
      • S(a);OGATE,XS(E)::QAB1(B)
      • S(a);OGATE::QAB1(B)
      • S(a);N_GUARD,SBLOCK,S_CUTR(d)::S(G)
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