MESON Chess Problem Database

Problem Display
PID: 206710 (3Q4/8/4pp2/RN2p3/4k2P/3N2K1/2P5/8 w - - 0 1)

Pikler, Robert

Nepszava, 1925

3Q4/8/4pp2/RN2p3/4k2P/3N2K1/2P5/8

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kf2?
      • 1...f5
        • 2.Sc3#
        • 2.Ra4#
        • 2.Qa8#
      • 1...Kf5!
    • 1.Sc1?
      • threat
        • 2.Qd3#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kf5!
    • 1.Se1?
      • threat
        • 2.Qd3#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kf5!
    • 1.Sb2?
      • threat
        • 2.Qd3#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kf5!
    • 1.Sf2+?
      • 1...Ke3
        • 2.Qd3#
      • 1...Kf5!
    • 1.Sb4?
      • threat
        • 2.Qd3#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kf5!
    • 1.Sf4?
      • threat
        • 2.Qd3#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kf5
        • 2.Sd6#
      • 1...exf4+!
    • 1.Sc5+?
      • 1...Ke3
        • 2.Qd3#
      • 1...Kf5!
    • 1.Qb6?
      • threat
        • 2.Sd6#
      • 1...Kd5
        • 2.Sd6#
      • 1...Kf5!
    • 1.Qd4+?
      • 1...Kf5
        • 2.Qg4#
      • 1...exd4!
  • Keys
    • 1.Sxe5!
      • 1...Ke3
        • 2.Qd3#
      • 1...Kxe5
        • 2.Sc3#
      • 1...Kf5
        • 2.Sd6#
      • 1...fxe5
        • 2.Qd3#
      • 1...f5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAB1(G)
      • Vars
        • K(a);P-FLIGHT::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAB1(G)
      • Vars
        • K(a);P-FLIGHT::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAB1(G)
      • Vars
        • K(a);P-FLIGHT::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAB1(G)
      • Vars
        • K(a);P-FLIGHT::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAB1(G)
      • Vars
        • K(a);P-FLIGHT::QAR1(G)
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • P(b);CHECK,XS(B)
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • S(F)
      • Vars
        • K(a);S_FLIGHT::R(E)+S(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(G)
      • Refutation
        • P(b);XQ(G)
  • Actual
    • S(B);XP(b)
    • Vars
      • K(a);P-FLIGHT::QAR1(G)
      • K(a);P-FLIGHT,XS(B)::R(E)+S(F)
      • K(a);S_FLIGHT::S(F)
      • P(d);SBLOCK,XS(B)::QAB1(G)
      • P(d);SBLOCK::QAR1(G)
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