MESON Chess Problem Database

Problem Display
PID: 202660 (8/3p4/2pP4/2pP4/5N2/P1k2p2/K1N2R2/4nQ2 w - - 0 1)

Papp, Mozes

Nepszava, 1923

8/3p4/2pP4/2pP4/5N2/P1k2p2/K1N2R2/4nQ2

#2

8 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc2
      • 2.Qd3#
    • 1...Sg2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...c4
      • 2.Qxe1#
    • 1...cxd5
      • 2.Sxd5#
  • Tries
    • 1.Rh2?
      • 1...Sxc2
        • 2.Qd3#
      • 1...cxd5
        • 2.Sxd5#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...c4
        • 2.Qxe1#
      • 1...f2!
    • 1.Qe2?
      • 1...Sxc2
        • 2.Qd3#
      • 1...cxd5
        • 2.Sxd5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sg2
        • 2.Qd3#
      • 1...c4
        • 2.Qxe1#
        • 2.Qd2#
        • 2.Qe5#
      • 1...fxe2!
    • 1.Qb5?
      • threat
        • 2.Qb3#
        • 2.Qxc5#
      • 1...Sxc2
        • 2.Qd3#
        • 2.Qxc5#
      • 1...Sd3
        • 2.Qxd3#
        • 2.Qb3#
      • 1...c4
        • 2.Qb2#
        • 2.Qb4#
        • 2.Qa5#
      • 1...cxb5!
    • 1.a4?
      • 1...cxd5
        • 2.Sxd5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sg2
        • 2.Qd3#
      • 1...c4
        • 2.Qxe1#
      • 1...Sxc2!
    • 1.dxc6?
      • threat
        • 2.Sd5#
      • 1...Sxc2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...dxc6!
  • Keys
    • 1.Qa6!
      • 1...Sxc2
        • 2.Qd3#
      • 1...cxd5
        • 2.Sxd5#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...c4
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,XS(C)::QAR1(A)
    • S(a);N_GUARD::QAR1(A)
    • S(a);N_GUARD::QAR1(A),XS(a)
    • P(d);SBLOCK::QAB(A),XS(a)
    • P(e);XP(G)::S(F),XP(e)
  • Tries
    • Try
      • R(D);
      • Vars
        • S(a);N_GUARD,XS(C)::QAR1(A)
        • P(e);XP(G)::S(F),XP(e)
        • S(a);N_GUARD::QAR1(A)
        • S(a);N_GUARD::QAR1(A),XS(a)
        • P(d);SBLOCK::QAB(A),XS(a)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Vars
        • S(a);N_GUARD,XS(C)::QAR1(A)
        • P(e);XP(G)::S(F),XP(e)
        • S(a);N_GUARD::QAR1(A),XS(a)
        • S(a);N_GUARD::QAR1(A)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • P(e);XQ(A)
    • Try
      • P(E);
      • Vars
        • P(e);XP(G)::S(F),XP(e)
        • S(a);N_GUARD::QAR1(A),XS(a)
        • S(a);N_GUARD::QAR1(A)
        • P(d);SBLOCK::QAB(A),XS(a)
      • Refutation
        • S(a);XS(C)
    • Try
      • P(G);XP(e)
      • Threat
        • S(F)
      • Vars
        • S(a);N_GUARD,XS(C)::QAR1(A)
        • S(a);N_GUARD::QAR1(A),XS(a)
      • Refutation
        • P(f);XP(G)
  • Actual
    • Q(A);
    • Vars
      • S(a);N_GUARD,XS(C)::QAR1(A)
      • P(e);XP(G)::S(F),XP(e)
      • S(a);N_GUARD::QAR1(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
      • P(d);SBLOCK::QAB(A)
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Developed and maintained by Brian Stephenson.
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