MESON Chess Problem Database

Problem Display
PID: 53199 (4R1r1/K1R3B1/B3N2Q/2Pkq2N/3P4/3pppp1/1n6/8 w - - 0 1)

Pulitzer, Walter

Les Tours de Force sur l'Echiquier, 1906

4R1r1/K1R3B1/B3N2Q/2Pkq2N/3P4/3pppp1/1n6/8

#2

10 + 8

268 Chess Life 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qf4
      • 2.Sexf4#
    • 1...Qd6
      • 2.Sf6#
    • 1...Qf6
      • 2.Sxf6#
    • 1...Qxc7+
      • 2.Sxc7#
    • 1...Qe4
      • 2.Sf6#
    • 1...Qxh5
      • 2.Sf4#
    • 1...Qxe6
      • 2.Qxe6#
    • 1...Sc4
      • 2.Bb7#
  • Tries
    • 1.Shf4+?
      • 1...Qxf4
        • 2.Sxf4#
      • 1...Ke4!
    • 1.Qg5?
      • threat
        • 2.Sf6#
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qxe5#
      • 1...Rxe8
        • 2.Qxe5#
      • 1...Qf5
        • 2.Sf6#
        • 2.Sef4#
        • 2.Qxf5#
      • 1...Rf8
        • 2.Qxe5#
      • 1...Sc4
        • 2.Sf6#
        • 2.Bb7#
      • 1...Qxg5!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qxe5#
      • 1...Qxc7+
        • 2.Sxc7#
      • 1...Ke4
        • 2.Qxe5#
      • 1...Qxd4
        • 2.Qxd4#
      • 1...Qxf6
        • 2.Sxf6#
      • 1...Qxh5
        • 2.Sf4#
      • 1...Qxe6
        • 2.Qxe6#
      • 1...Qf4
        • 2.Sexf4#
      • 1...Qd6
        • 2.Qxf3#
      • 1...Qe4
        • 2.Qd8#
      • 1...Qf5
        • 2.Qxf5#
      • 1...Qg5
        • 2.Qxf3#
      • 1...Sc4
        • 2.Bb7#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(g);N_GUARD::S(E),XQ(g)
    • Q(g);N_GUARD::S(C)
    • Q(g);N_GUARD::S(C),XQ(g)
    • Q(g);CHECK,XR(H)::S(E),XQ(g)
    • Q(g);N_GUARD,XS(C)::S(E)
    • Q(g);OGATE,XS(E)::QAB1(F),XQ(g)
    • S(a);SBLOCK::B(D)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • Q(g);XS(C)::S(E),XQ(g)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(F);P_PINQ(g)
      • Threat
        • DUALS(2)
      • Vars
        • K(f);N_SPINQ(g),S_FLIGHT::QAR1(F),XQ(g)
        • R(h);XR(J)::QAR1(F),XQ(g)
        • R(h);::QAR1(F),XQ(g)
      • Refutation
        • Q(g);N_SPINQ(g),XQ(F)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F),XQ(g)
    • Vars
      • Q(g);CHECK,XR(H)::S(E),XQ(g)
      • K(f);S_FLIGHT::QAR1(F),XQ(g)
      • Q(g);OGATE,P_PINP(B),XP(A)::QAR1(F),XQ(g)
      • Q(g);XQ(F)::S(C),XQ(g)
      • Q(g);N_GUARD,XS(C)::S(E)
      • Q(g);OGATE,XS(E)::QAB1(F),XQ(g)
      • Q(g);N_GUARD::S(E),XQ(g)
      • Q(g);N_GUARD::QAB(F),XP(d)
      • Q(g);N_GUARD,SBLOCK::QAR(F)
      • Q(g);OGATEB::QAR2(F),XQ(g)
      • S(a);SBLOCK::B(D)
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