MESON Chess Problem Database

Problem Display
PID: 106262 (8/8/8/7Q/2P1P2p/1pPkp2P/1Pp1N3/2K5 w - - 0 1)

Skolski, J

Glas Pracy, 1954

8/8/8/7Q/2P1P2p/1pPkp2P/1Pp1N3/2K5

#2

8 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qd5#
    • 1...Kxe4
      • 2.Qd5#
  • Tries
    • 1.Sg1?
      • threat
        • 2.Qd5#
      • 1...Kxc4
        • 2.Qd5#
      • 1...e2
        • 2.Qxe2#
      • 1...Kxe4!
    • 1.Sg3?
      • threat
        • 2.Qe2#
        • 2.Qd5#
      • 1...Kxc4
        • 2.Qd5#
      • 1...e2
        • 2.Qxe2#
      • 1...hxg3!
    • 1.Sf4+?
      • 1...Kxc4
        • 2.Qd5#
      • 1...Kxe4!
    • 1.Qf7?
      • 1...Kxe4
        • 2.Qd5#
      • 1...Kxe2!
    • 1.Qa5?
      • 1...Kxc4
        • 2.Qd5#
      • 1...Kxe4
        • 2.Qd5#
      • 1...Kxe2!
    • 1.Qb5?
      • 1...Kxe4
        • 2.Qd5#
      • 1...Kxe2!
    • 1.Qc5?
      • 1...Kxe4
        • 2.Qd5#
      • 1...Kxe2!
    • 1.Qe5?
      • 1...Kxc4
        • 2.Qd5#
      • 1...Kxe2!
    • 1.Qf5?
      • 1...Kxc4
        • 2.Qd5#
      • 1...Kxe2!
    • 1.Qg5?
      • 1...Kxc4
        • 2.Qd5#
      • 1...Kxe4
        • 2.Qd5#
      • 1...Kxe2!
  • Keys
    • 1.Sd4!
      • 1...Kxc4
        • 2.Qb5#
      • 1...Kxe4
        • 2.Qf5#
      • 1...e2
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XP(F)::QAB1(H)
    • K(c);S_FLIGHT,XP(G)::QAB1(H)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR2(H)
      • Vars
        • K(c);S_FLIGHT,XP(F)::QAB1(H)
        • P(d);::QAB1(H),XP(d)
      • Refutation
        • K(c);S_FLIGHT,XP(G)
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);S_FLIGHT,XP(F)::QAB1(H)
        • P(d);::QAB1(H),XP(d)
      • Refutation
        • P(e);XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(c);S_FLIGHT,XP(F)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT,XP(G)
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT,XP(G)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT,XP(F)::QAB1(H)
        • K(c);S_FLIGHT,XP(G)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT,XP(G)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT,XP(G)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT,XP(F)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT,XP(F)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT,XP(F)::QAB1(H)
        • K(c);S_FLIGHT,XP(G)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
  • Actual
    • S(C);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XP(F)::QAB1(H)
      • K(c);OGATEB,S_FLIGHT,XP(G)::QAB1(H)
      • P(d);::QAB1(H),XP(d)
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