MESON Chess Problem Database

Problem Display
PID: 242203 (2B4n/1p1N1p2/1B1p1Pp1/4N1p1/3pk1p1/6P1/Q1p1bK2/2R1R3 w - - 0 1)

Kisis, Imants J

Magyar Sakkelet, 1965

2B4n/1p1N1p2/1B1p1Pp1/4N1p1/3pk1p1/6P1/Q1p1bK2/2R1R3

#2

10 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...dxe5
      • 2.Sc5#
  • Tries
    • 1.Sc4?
      • 1...Kd3
        • 2.Qxc2#
      • 1...Kf5
        • 2.Sxd6#
      • 1...d3
        • 2.Sxd6#
      • 1...d5
        • 2.Sc5#
      • 1...Kd5!
    • 1.Sxg4?
      • 1...Kd3
        • 2.Qxc2#
      • 1...Kf5
        • 2.Sc5#
      • 1...d5
        • 2.Sc5#
      • 1...d3!
    • 1.Sxf7?
      • 1...Kd3
        • 2.Qxc2#
      • 1...Kf5
        • 2.Sxd6#
        • 2.Qd5#
      • 1...d3
        • 2.Sxd6#
        • 2.Qe6#
      • 1...d5
        • 2.Sc5#
      • 1...Sxf7!
    • 1.Sc5+?
      • 1...dxc5
        • 2.Rxe2#
      • 1...Kxe5!
    • 1.Qb3?
      • 1...dxe5
        • 2.Sc5#
      • 1...d3
        • 2.Qxd3#
      • 1...d5
        • 2.Qd3#
      • 1...Kf5!
    • 1.Qc4?
      • 1...dxe5
        • 2.Sc5#
      • 1...d5
        • 2.Qd3#
      • 1...Kf5!
    • 1.Qd5+?
      • 1...Kf5
        • 2.Sd3#
        • 2.Sf3#
        • 2.Sc4#
        • 2.Sc6#
        • 2.Sxf7#
      • 1...Kxd5!
    • 1.Qe6?
      • threat
        • 2.Rxe2#
      • 1...dxe5
        • 2.Sc5#
      • 1...d3
        • 2.Sxf7#
      • 1...fxe6!
    • 1.Qxc2+?
      • 1...d3
        • 2.Qxd3#
      • 1...Kd5!
  • Keys
    • 1.Sd3!
      • 1...Kxd3
        • 2.Qxc2#
      • 1...Kf5
        • 2.Qd5#
      • 1...d5
        • 2.S7c5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(g);N_GUARD,SBLOCK,XS(F)::S(I)
  • Tries
    • Try
      • S(F);
      • Vars
        • K(d);N_SPINB(b),S_FLIGHT::QAB1(C),XP(a)
        • K(d);N_SPINB(b),S_FLIGHT::S(F),XP(g)
        • P(c);SBLOCK::S(F),XP(g)
        • P(g);N_GUARD,SBLOCK::S(I)
      • Refutation
        • K(d);N_SPINB(b),S_FLIGHT
    • Try
      • S(F);XP(e)
      • Vars
        • K(d);N_SPINB(b),S_FLIGHT::QAB1(C),XP(a)
        • K(d);N_SPINB(b),S_FLIGHT::B(J)+S(I)
        • P(g);N_GUARD::S(I)
      • Refutation
        • P(c);
    • Try
      • S(F);XP(j)
      • Vars
        • K(d);N_SPINB(b),S_FLIGHT::QAB1(C),XP(a)
        • P(g);N_GUARD::S(I)
      • Refutation
        • S(k);XS(F)
    • Try
      • S(I);CHECK
      • Vars
        • P(g);XS(I)::R(B),XB(b)
      • Refutation
        • K(d);P-FLIGHT,XS(F)
    • Try
      • Q(C);
      • Vars
        • P(g);N_GUARD,SBLOCK,XS(F)::S(I)
        • P(c);::QAB1(C),XP(c)
        • P(g);SBLOCK::QAB1(C)
      • Refutation
        • K(d);N_SPINB(b),S_FLIGHT
    • Try
      • Q(C);P_PINP(c)
      • Vars
        • P(g);N_GUARD,SBLOCK,XS(F)::S(I)
        • P(g);SBLOCK::QAB1(C)
      • Refutation
        • K(d);N_SPINB(b),N_SPINP(c),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(d);N_SPINB(b),S_FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Threat
        • R(B),XB(b)
      • Vars
        • P(g);N_GUARD,P_SPINP(g),XS(F)::S(I)
        • P(c);SBLOCK::QAR(C)+S(F),XP(j)
      • Refutation
        • P(j);XQ(C)
    • Try
      • Q(C);CHECK,XP(a)
      • Vars
        • P(c);P_SPINP(c)::QAB1(C),XP(c)
      • Refutation
        • K(d);N_SPINB(b),S_FLIGHT
  • Actual
    • S(F);
    • Vars
      • K(d);N_SPINB(b),OGATEB,S_FLIGHT,XS(F)::QAB1(C),XP(a)
      • K(d);N_SPINB(b),S_FLIGHT::QAR2(C)
      • P(g);N_GUARD::S(I)
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