MESON Chess Problem Database

Problem Display
PID: 201610 (2K5/2pN4/4P3/2R3p1/5k2/3PqP2/2Nn1RnP/2B1Q3 w - - 0 1)

Schor, Laszlo

Western Morning News, 1922

(First published on Sat Apr 9 1921)

2K5/2pN4/4P3/2R3p1/5k2/3PqP2/2Nn1RnP/2B1Q3

#2

11 + 6

6490 yacpdb 2020
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf2
      • 2.Qe4#
    • 1...Qxc5
      • 2.Qe4#
    • 1...Qxd3
      • 2.Qe5#
    • 1...Qxf3
      • 2.Qe4#
    • 1...Qe4
      • 2.Qxe4#
    • 1...Qe5
      • 2.Qxe5#
    • 1...Sb1
      • 2.Qb4#
    • 1...Sf1
      • 2.Qb4#
    • 1...Sxf3
      • 2.Qb4#
    • 1...Sh4
      • 2.Qxe3#
  • Tries
    • 1.Sf6?
      • threat
        • 2.Sh5#
      • 1...Qxf2
        • 2.Qe4#
      • 1...Qxc5
        • 2.Qe4#
      • 1...Qxf3
        • 2.Qe4#
        • 2.Qe5#
      • 1...Sxf3
        • 2.Qb4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qxe6+!
  • Keys
    • 1.Sf8!
      • threat
        • 2.Sg6#
      • 1...Qxe6+
        • 2.Sxe6#
      • 1...Qxf2
        • 2.Qe4#
      • 1...Qxc5
        • 2.Qe4#
      • 1...Qxd3
        • 2.Qe5#
      • 1...Qxf3
        • 2.Qe4#
      • 1...Sxf3
        • 2.Qb4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Sh4
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(c);OGATE,P_SPINS(a),XR(D)::QAR1(B)
    • Q(c);OGATE,P_SPINS(a),XR(H)::QAR1(B)
    • Q(c);OGATE,P_SPINS(a),XP(F)::QAB1(B)
    • Q(c);OGATE,P_SPINQ(c),P_SPINS(a),XP(G)::QAR1(B)
    • Q(c);OGATE,P_SPINS(a)::QAR1(B),XQ(c)
    • Q(c);OGATE,P_SPINS(a)::QAB1(B),XQ(c)
    • S(a);OGATE,P_SPINQ(c)::QAR(B)
    • S(a);OGATE,P_SPINQ(c),P_SPINS(a),XP(G)::QAR(B)
    • S(b);N_GUARD::QAB1(B),XQ(c)
  • Tries
    • Try
      • S(J);
      • Threat
        • S(J)
      • Vars
        • Q(c);OGATE,P_SPINS(a),XR(D)::QAR1(B)
        • Q(c);OGATE,P_SPINS(a),XR(H)::QAR1(B)
        • S(a);OGATE,P_SPINQ(c),P_SPINS(a),XP(G)::QAR(B)
        • Q(c);OGATE,P_SPINS(a)::QAB1(B),XQ(c)
      • Refutation
        • Q(c);CHECK,P_SPINS(a),XP(I)
  • Actual
    • S(J);
    • Threat
      • S(J)
    • Vars
      • Q(c);CHECK,P_SPINS(a),XP(I)::S(J),XQ(c)
      • Q(c);OGATE,P_SPINS(a),XR(D)::QAR1(B)
      • Q(c);OGATE,P_SPINS(a),XR(H)::QAR1(B)
      • Q(c);OGATE,P_SPINS(a),XP(F)::QAB1(B)
      • Q(c);OGATE,P_SPINQ(c),P_SPINS(a),XP(G)::QAR1(B)
      • S(a);OGATE,P_SPINQ(c),P_SPINS(a),XP(G)::QAR(B)
      • Q(c);OGATE,P_SPINS(a)::QAB1(B),XQ(c)
      • Q(c);OGATE,P_SPINS(a)::QAR1(B),XQ(c)
      • S(b);N_GUARD::QAB1(B),XQ(c)
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