MESON Chess Problem Database

Problem Display
PID: 180202 (8/8/2p2p2/1P3Q2/1p1k4/1PN2p2/P3PP2/4K3 w - - 0 1)

Schlechter, Carl

2nd Prize, Tidskrift for Schack, 1905

8/8/2p2p2/1P3Q2/1p1k4/1PN2p2/P3PP2/4K3

#2

8 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...fxe2
      • 2.Sxe2#
    • 1...bxc3
      • 2.e3#
    • 1...cxb5
      • 2.Sxb5#
    • 1...c5
      • 2.Qxf6#
  • Tries
    • 1.Kf1?
      • 1...fxe2+
        • 2.Sxe2#
      • 1...bxc3
        • 2.e3#
      • 1...cxb5
        • 2.Sxb5#
      • 1...c5
        • 2.Qxf6#
      • 1...Kxc3!
    • 1.Kd2?
      • threat
        • 2.e3#
      • 1...fxe2
        • 2.Sxe2#
      • 1...bxc3+!
    • 1.Qd3+?
      • 1...Kc5
        • 2.Sa4#
      • 1...Ke5!
    • 1.Qf4+?
      • 1...Kxc3
        • 2.Qd2#
      • 1...Kc5!
    • 1.Qd5+?
      • 1...Kxc3
        • 2.Qd2#
      • 1...cxd5!
    • 1.bxc6?
      • threat
        • 2.Sb5#
      • 1...bxc3
        • 2.e3#
      • 1...Kxc3!
    • 1.b6?
      • 1...fxe2
        • 2.Sxe2#
      • 1...bxc3
        • 2.e3#
      • 1...c5
        • 2.Sb5#
        • 2.Qxf6#
      • 1...Kxc3!
  • Keys
    • 1.Kd1!
      • 1...fxe2+
        • 2.Sxe2#
      • 1...Kxc3
        • 2.Qxf6#
      • 1...bxc3
        • 2.e3#
      • 1...cxb5
        • 2.Sxb5#
      • 1...c5
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(a);XP(C)::S(F),XP(a)
    • P(b);SBLOCK,XS(F)::P(C)
    • P(d);XP(G)::S(F),XP(d)
    • P(d);SBLOCK::QAB(H),XP(e)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(a);CHECK,XP(C)::S(F),XP(a)
        • P(b);SBLOCK,XS(F)::P(C)
        • P(d);XP(G)::S(F),XP(d)
        • P(d);SBLOCK::QAB(H),XP(e)
      • Refutation
        • K(c);S_FLIGHT,XS(F)
    • Try
      • K(A);S_FLIGHT
      • Threat
        • P(C)
      • Vars
        • P(a);XP(C)::S(F),XP(a)
      • Refutation
        • P(b);CHECK,XS(F)
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(F)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT,XS(F)::QAB1(H)
      • Refutation
        • P(d);XQ(H)
    • Try
      • P(G);XP(d)
      • Threat
        • S(F)
      • Vars
        • P(b);SBLOCK,XS(F)::P(C)
      • Refutation
        • K(c);S_FLIGHT,XS(F)
    • Try
      • P(G);
      • Vars
        • P(a);XP(C)::S(F),XP(a)
        • P(b);SBLOCK,XS(F)::P(C)
      • Refutation
        • K(c);S_FLIGHT,XS(F)
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • P(a);CHECK,XP(C)::S(F),XP(a)
      • K(c);S_FLIGHT,XS(F)::QAB(H),XP(e)
      • P(b);SBLOCK,XS(F)::P(C)
      • P(d);XP(G)::S(F),XP(d)
      • P(d);SBLOCK::QAB(H),XP(e)
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